1 | /*===============================================================*\ |
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2 | | Project: RTEMS bdbuf inspector | |
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3 | +-----------------------------------------------------------------+ |
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4 | | File: show_bdbuf.c |
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5 | +-----------------------------------------------------------------+ |
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6 | | Copyright (c) 2005 | |
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7 | | Embedded Brains GmbH | |
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8 | | Obere Lagerstr. 30 | |
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9 | | D-82178 Puchheim | |
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10 | | Germany | |
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11 | | rtems@embedded-brains.de | |
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12 | +-----------------------------------------------------------------+ |
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13 | | The license and distribution terms for this file may be | |
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14 | | found in the file LICENSE in this distribution or at | |
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15 | | | |
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16 | | http://www.rtems.com/license/LICENSE. | |
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17 | | | |
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18 | +-----------------------------------------------------------------+ |
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19 | | this file contains functions to enable the monitor | |
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20 | | to show bdbuf information | |
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21 | | | |
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22 | | XXX!!! ATTETION!!! XXX!!! | |
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23 | | | |
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24 | | This module inspects the bdbuf data structures, | |
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25 | | assuming they are static, but in fact they are used very | |
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26 | | dynamically. Therefore the results show MAY BE INCORRECT in | |
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27 | | some cases. And, to cure this a bit, this module may block | |
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28 | | preemption for a rather long time and therefore it may | |
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29 | | BREAK THE REALTIME BEHAVIOUR OF YOUR SYSTEM (when in use) | |
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30 | +-----------------------------------------------------------------+ |
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31 | | date history ID | |
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32 | | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
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33 | | 26.09.06 creation doe | |
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34 | |*****************************************************************| |
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35 | \*===============================================================*/ |
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36 | |
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37 | #if HAVE_CONFIG_H |
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38 | #include "config.h" |
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39 | #endif |
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40 | |
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41 | #include <rtems.h> |
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42 | #include <rtems/monitor.h> |
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43 | #include <rtems/bdbuf.h> |
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44 | #include <string.h> |
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45 | #include <ctype.h> |
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46 | #include <stdio.h> |
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47 | #include <rtems/libio.h> |
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48 | #include <inttypes.h> |
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49 | |
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50 | typedef struct { |
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51 | bool bdbuf_modified; |
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52 | bool bdbuf_in_progress; |
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53 | bool bdbuf_actual; |
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54 | bool bdbuf_used; |
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55 | bool bdbuf_all; |
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56 | rtems_bdpool_id pool_id; |
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57 | } show_bdbuf_filter_t; |
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58 | |
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59 | typedef struct { |
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60 | bool show_all; |
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61 | bool show_node_chain; |
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62 | bool show_dev; |
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63 | bool show_blocknum; |
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64 | bool show_error; |
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65 | bool show_state; |
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66 | bool show_use_count; |
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67 | bool show_pool_id; |
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68 | bool show_sema; |
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69 | } show_bdbuf_selector_t; |
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70 | |
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71 | typedef enum {bdbuf_chain_ident_none, |
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72 | bdbuf_chain_ident_free, |
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73 | bdbuf_chain_ident_lru, |
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74 | bdbuf_chain_ident_mod} bdbuf_chain_identifier_t; |
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75 | |
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76 | typedef struct { |
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77 | rtems_bdpool_id pool_id; |
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78 | int index; |
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79 | bdbuf_chain_identifier_t in_chain; |
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80 | dev_t dev; |
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81 | blkdev_bnum blknum; |
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82 | rtems_status_code status; |
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83 | int error; |
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84 | bool modified; |
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85 | bool in_progress; |
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86 | bool actual; |
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87 | int use_count; |
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88 | const CORE_mutex_Control *sema; |
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89 | } show_bdbuf_bdbuf_info_t; |
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90 | |
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91 | typedef rtems_mode preemption_key_t; |
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92 | #define DISABLE_PREEMPTION(key) \ |
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93 | do { \ |
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94 | rtems_task_mode(RTEMS_NO_PREEMPT, RTEMS_PREEMPT_MASK, &(key)); \ |
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95 | } while (0) |
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96 | |
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97 | #define ENABLE_PREEMPTION(key) \ |
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98 | do { \ |
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99 | rtems_mode temp; \ |
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100 | rtems_task_mode((key), RTEMS_PREEMPT_MASK, &temp); \ |
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101 | } while (0) |
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102 | |
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103 | /*=========================================================================*\ |
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104 | | Function: | |
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105 | \*-------------------------------------------------------------------------*/ |
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106 | rtems_status_code rtems_bdbuf_show_follow_chain_node_to_head |
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107 | ( |
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108 | /*-------------------------------------------------------------------------*\ |
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109 | | Purpose: | |
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110 | | follow a given chain to its head | |
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111 | | XXX: this is executed with preemption disabled | |
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112 | +---------------------------------------------------------------------------+ |
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113 | | Input Parameters: | |
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114 | \*-------------------------------------------------------------------------*/ |
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115 | const Chain_Node *the_node, /* input: node to track to its head */ |
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116 | Chain_Control **the_head /* storage for pointer to chain head */ |
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117 | ) |
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118 | /*-------------------------------------------------------------------------*\ |
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119 | | Return Value: | |
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120 | | rtems_status_code | |
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121 | \*=========================================================================*/ |
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122 | { |
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123 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
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124 | preemption_key_t preempt_key; |
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125 | bool preempt_disabled = false; |
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126 | /* |
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127 | * disable preemption |
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128 | */ |
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129 | if (rc == RTEMS_SUCCESSFUL) { |
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130 | DISABLE_PREEMPTION(preempt_key); |
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131 | } |
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132 | /* |
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133 | * follow node to its head |
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134 | * XXX: this is highly dependent on the chain implementation |
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135 | * in score/src/chain.c and friends |
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136 | */ |
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137 | while (the_node->previous != NULL) { |
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138 | the_node = the_node->previous; |
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139 | } |
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140 | /* |
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141 | * reenable preemption, if disabled |
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142 | */ |
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143 | if (preempt_disabled) { |
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144 | ENABLE_PREEMPTION(preempt_key); |
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145 | } |
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146 | /* |
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147 | * XXX: this depends n the chain implementation in |
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148 | * score/include/rtems/score/chain.h: |
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149 | * Chain_Control is overlayed by two Cohain_Nodes |
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150 | */ |
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151 | *the_head = (Chain_Control *)the_node; |
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152 | |
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153 | return rc; |
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154 | } |
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155 | |
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156 | /*=========================================================================*\ |
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157 | | Function: | |
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158 | \*-------------------------------------------------------------------------*/ |
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159 | rtems_status_code rtems_bdbuf_show_determine_chain_of_bdbuf |
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160 | ( |
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161 | /*-------------------------------------------------------------------------*\ |
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162 | | Purpose: | |
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163 | | find out, which chain this bdbuf is linked in | |
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164 | +---------------------------------------------------------------------------+ |
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165 | | Input Parameters: | |
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166 | \*-------------------------------------------------------------------------*/ |
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167 | const bdbuf_buffer *the_bdbuf, /* this is the bdbuf structure */ |
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168 | const bdbuf_pool *curr_pool, /* the pool this buffer belongs to */ |
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169 | bdbuf_chain_identifier_t *chn_ident /* result: identifier for chain */ |
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170 | ) |
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171 | /*-------------------------------------------------------------------------*\ |
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172 | | Return Value: | |
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173 | | rtems_status_code | |
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174 | \*=========================================================================*/ |
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175 | { |
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176 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
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177 | Chain_Control *the_chain_control; |
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178 | |
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179 | |
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180 | *chn_ident = bdbuf_chain_ident_none; |
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181 | if (rc == RTEMS_SUCCESSFUL) { |
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182 | rc = rtems_bdbuf_show_follow_chain_node_to_head(&(the_bdbuf->link), |
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183 | &(the_chain_control)); |
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184 | } |
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185 | if (rc == RTEMS_SUCCESSFUL) { |
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186 | if (the_chain_control == &(curr_pool->free)) { |
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187 | *chn_ident = bdbuf_chain_ident_free; |
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188 | } |
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189 | else if (the_chain_control == &(curr_pool->lru)) { |
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190 | *chn_ident = bdbuf_chain_ident_lru; |
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191 | } |
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192 | else if (the_chain_control == &(rtems_bdbuf_ctx.mod)) { |
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193 | *chn_ident = bdbuf_chain_ident_mod; |
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194 | } |
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195 | } |
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196 | return rc; |
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197 | } |
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198 | |
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199 | /*=========================================================================*\ |
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200 | | Function: | |
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201 | \*-------------------------------------------------------------------------*/ |
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202 | rtems_status_code rtems_bdbuf_show_getargs |
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203 | ( |
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204 | /*-------------------------------------------------------------------------*\ |
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205 | | Purpose: | |
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206 | | analyze cmd arguments | |
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207 | +---------------------------------------------------------------------------+ |
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208 | | Input Parameters: | |
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209 | \*-------------------------------------------------------------------------*/ |
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210 | int argc, |
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211 | char **argv, |
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212 | show_bdbuf_filter_t *filter, |
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213 | show_bdbuf_selector_t *selector |
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214 | ) |
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215 | /*-------------------------------------------------------------------------*\ |
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216 | | Return Value: | |
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217 | | rtems_status_code | |
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218 | \*=========================================================================*/ |
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219 | { |
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220 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
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221 | int arg_error = 0; |
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222 | int i; |
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223 | char *tmp_ptr; |
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224 | int nm_argc = 0; |
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225 | /* |
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226 | * set filter and selector to default |
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227 | */ |
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228 | memset(filter,0,sizeof(*filter)); |
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229 | filter->bdbuf_all = true; |
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230 | memset(selector,0,sizeof(*selector)); |
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231 | selector->show_all = true; |
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232 | |
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233 | /* |
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234 | * scan arguments |
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235 | */ |
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236 | for (i = 1; |
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237 | (i < argc) && (arg_error == 0); |
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238 | i++) { |
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239 | if (argv[i][0] == '-') { |
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240 | /* |
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241 | * modifier arguments |
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242 | */ |
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243 | switch(tolower(argv[i][1])) { |
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244 | /* |
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245 | * selection, which bdbufs to show |
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246 | */ |
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247 | case 'm': /* only show bdbufs modified */ |
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248 | filter->bdbuf_modified = true ; |
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249 | filter->bdbuf_all = false; |
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250 | break; |
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251 | case 'i': /* only show bdbufs in progress*/ |
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252 | filter->bdbuf_in_progress = true ; |
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253 | filter->bdbuf_all = false; |
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254 | break; |
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255 | case 'v': /* only show bdbufs, which have valid data*/ |
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256 | filter->bdbuf_actual = true ; |
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257 | filter->bdbuf_all = false; |
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258 | break; |
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259 | case 'u': /* only show bdbufs, which are in use */ |
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260 | filter->bdbuf_used = true ; |
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261 | filter->bdbuf_all = false; |
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262 | break; |
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263 | case 'p': /* only show bdbufs, which belong to pool <n> */ |
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264 | filter->pool_id = strtol(argv[i]+2,&tmp_ptr,0); |
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265 | if (tmp_ptr == argv[i]+2) { /* no conversion performed... */ |
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266 | arg_error = i; |
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267 | } |
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268 | filter->bdbuf_all = false; |
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269 | break; |
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270 | /* |
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271 | * selection, what fields to show |
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272 | */ |
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273 | case 'n': /* show bdbuf node_chain */ |
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274 | selector->show_node_chain = true ; |
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275 | selector->show_all = false; |
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276 | break; |
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277 | case 'd': /* show device */ |
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278 | selector->show_dev = true ; |
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279 | selector->show_all = false; |
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280 | break; |
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281 | case 'b': /* show blocknum */ |
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282 | selector->show_blocknum = true ; |
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283 | selector->show_all = false; |
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284 | break; |
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285 | case 'e': /* show bdbuf error status */ |
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286 | selector->show_error = true ; |
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287 | selector->show_all = false; |
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288 | break; |
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289 | case 's': /* show bdbuf state */ |
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290 | selector->show_state = true ; |
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291 | selector->show_all = false; |
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292 | break; |
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293 | case 'c': /* show bdbuf use count */ |
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294 | selector->show_use_count = true ; |
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295 | selector->show_all = false; |
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296 | break; |
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297 | case 'l': /* show bdbuf pool id */ |
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298 | selector->show_pool_id = true ; |
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299 | selector->show_all = false; |
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300 | break; |
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301 | case 't': /* show bdbuf transfer sema */ |
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302 | selector->show_sema = true ; |
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303 | break; |
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304 | default: |
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305 | arg_error = i; |
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306 | break; |
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307 | } |
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308 | } |
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309 | else { |
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310 | /* |
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311 | * non-modifier arguments |
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312 | */ |
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313 | switch(++nm_argc) { |
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314 | default: /* no further arguments defined */ |
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315 | arg_error = i; |
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316 | break; |
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317 | } |
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318 | } |
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319 | } |
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320 | if (arg_error) { |
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321 | printf("%s: unknown argument %s\n",argv[0],argv[arg_error]); |
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322 | sc = RTEMS_NOT_DEFINED; |
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323 | } |
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324 | return sc; |
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325 | } |
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326 | |
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327 | /*=========================================================================*\ |
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328 | | Function: | |
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329 | \*-------------------------------------------------------------------------*/ |
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330 | rtems_status_code rtems_bdbuf_show_get_bufpool |
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331 | ( |
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332 | /*-------------------------------------------------------------------------*\ |
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333 | | Purpose: | |
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334 | | get buffer pool information | |
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335 | | XXX: this should be coupled closer to the bdbuf.c module | |
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336 | +---------------------------------------------------------------------------+ |
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337 | | Input Parameters: | |
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338 | \*-------------------------------------------------------------------------*/ |
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339 | struct bdbuf_pool **pool_base_pptr, |
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340 | int *pool_cnt_ptr |
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341 | ) |
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342 | /*-------------------------------------------------------------------------*\ |
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343 | | Return Value: | |
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344 | | rtems_status_code | |
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345 | \*=========================================================================*/ |
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346 | { |
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347 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
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348 | #if 0 |
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349 | rtems_status_code pool_rc = RTEMS_SUCCESSFUL; |
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350 | struct bdbuf_pool *curr_pool,*pool_base, *pool_top; |
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351 | int pool_cnt; |
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352 | int pool_probe_size; |
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353 | /* |
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354 | * get first buffer pool |
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355 | * XXX: this is highly dependent on how pools are defined |
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356 | * and maintained in bdbuf.c |
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357 | */ |
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358 | if (rc == RTEMS_SUCCESSFUL) { |
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359 | /* |
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360 | * try all possible pool sizes, get highest/lowest pool address |
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361 | */ |
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362 | pool_base = NULL; |
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363 | pool_top = NULL; |
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364 | curr_pool = NULL; |
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365 | for (pool_probe_size = 1; |
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366 | pool_probe_size < (INT_MAX>>1) && (pool_rc == RTEMS_SUCCESSFUL); |
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367 | pool_probe_size <<= 1) { |
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368 | pool_rc = rtems_bdbuf_find_pool(pool_probe_size,&curr_pool); |
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369 | if (pool_rc == RTEMS_SUCCESSFUL) { |
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370 | if (pool_base > curr_pool) { |
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371 | pool_base = curr_pool; |
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372 | } |
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373 | if (pool_top < curr_pool) { |
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374 | pool_top = curr_pool; |
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375 | } |
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376 | } |
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377 | } |
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378 | if (pool_base == NULL) { |
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379 | rc = RTEMS_UNSATISFIED; |
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380 | } |
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381 | else { |
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382 | pool_cnt = (pool_top - pool_base) + 1; |
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383 | } |
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384 | } |
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385 | if (rc == RTEMS_SUCCESSFUL) { |
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386 | *pool_base_pptr = pool_base; |
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387 | *pool_cnt_ptr = pool_cnt; |
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388 | } |
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389 | #else |
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390 | if (rc == RTEMS_SUCCESSFUL) { |
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391 | *pool_base_pptr = rtems_bdbuf_ctx.pool; |
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392 | *pool_cnt_ptr = rtems_bdbuf_ctx.npools; |
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393 | } |
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394 | #endif |
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395 | return rc; |
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396 | } |
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397 | |
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398 | /*=========================================================================*\ |
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399 | | Function: | |
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400 | \*-------------------------------------------------------------------------*/ |
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401 | rtems_status_code rtems_bdbuf_show_pool_header |
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402 | ( |
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403 | /*-------------------------------------------------------------------------*\ |
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404 | | Purpose: | |
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405 | | print buffer pool information | |
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406 | +---------------------------------------------------------------------------+ |
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407 | | Input Parameters: | |
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408 | \*-------------------------------------------------------------------------*/ |
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409 | int pool_idx, |
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410 | bdbuf_pool *pool_ptr |
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411 | ) |
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412 | /*-------------------------------------------------------------------------*\ |
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413 | | Return Value: | |
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414 | | rtems_status_code | |
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415 | \*=========================================================================*/ |
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416 | { |
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417 | |
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418 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
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419 | |
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420 | if (rc == RTEMS_SUCCESSFUL) { |
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421 | printf("------------------------------------------------------------------------------\n"); |
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422 | printf(" pool #%03d: blksize=%5u nblks=%5u buf_mem=0x%08" PRIxPTR " bdbuf_mem=0x%08" PRIxPTR "\n", |
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423 | pool_idx, |
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424 | pool_ptr->blksize, |
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425 | pool_ptr->nblks, |
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426 | (intptr_t) pool_ptr->mallocd_bufs, |
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427 | (intptr_t) pool_ptr->bdbufs); |
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428 | printf("------------------------------------------------------------------------------\n"); |
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429 | } |
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430 | return rc; |
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431 | } |
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432 | |
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433 | /*=========================================================================*\ |
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434 | | Function: | |
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435 | \*-------------------------------------------------------------------------*/ |
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436 | rtems_status_code rtems_show_bdbuf_get_bdbuf_info |
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437 | ( |
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438 | /*-------------------------------------------------------------------------*\ |
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439 | | Purpose: | |
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440 | | get buffer pool information | |
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441 | | XXX: this should be coupled closer to the bdbuf.c module | |
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442 | +---------------------------------------------------------------------------+ |
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443 | | Input Parameters: | |
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444 | \*-------------------------------------------------------------------------*/ |
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445 | const bdbuf_buffer *the_bdbuf, /* this is the bdbuf structure */ |
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446 | int bdbuf_idx, /* index of bdbuf */ |
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447 | const bdbuf_pool *curr_pool, /* the pool this buffer belongs to */ |
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448 | show_bdbuf_bdbuf_info_t *bdbuf_info /* struct to store info of bdbuf */ |
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449 | ) |
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450 | /*-------------------------------------------------------------------------*\ |
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451 | | Return Value: | |
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452 | | rtems_status_code | |
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453 | \*=========================================================================*/ |
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454 | { |
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455 | |
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456 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
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457 | |
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458 | /* |
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459 | * determine the chain we are in |
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460 | */ |
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461 | if (rc == RTEMS_SUCCESSFUL) { |
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462 | rc = rtems_bdbuf_show_determine_chain_of_bdbuf(the_bdbuf,curr_pool, |
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463 | &(bdbuf_info->in_chain)); |
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464 | if (rc != RTEMS_SUCCESSFUL) { |
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465 | bdbuf_info->in_chain = bdbuf_chain_ident_none; |
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466 | rc = RTEMS_SUCCESSFUL; |
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467 | } |
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468 | } |
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469 | |
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470 | if (rc == RTEMS_SUCCESSFUL) { |
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471 | bdbuf_info->index = bdbuf_idx; |
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472 | bdbuf_info->dev = the_bdbuf->dev; |
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473 | bdbuf_info->blknum = the_bdbuf->block; |
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474 | bdbuf_info->status = the_bdbuf->status; |
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475 | bdbuf_info->error = the_bdbuf->error; |
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476 | bdbuf_info->modified = the_bdbuf->modified; |
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477 | bdbuf_info->in_progress = the_bdbuf->in_progress; |
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478 | bdbuf_info->actual = the_bdbuf->actual; |
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479 | bdbuf_info->use_count = the_bdbuf->use_count; |
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480 | bdbuf_info->sema = &(the_bdbuf->transfer_sema); |
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481 | bdbuf_info->pool_id = the_bdbuf->pool; |
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482 | } |
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483 | return rc; |
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484 | } |
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485 | |
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486 | /*=========================================================================*\ |
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487 | | Function: | |
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488 | \*-------------------------------------------------------------------------*/ |
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489 | rtems_status_code rtems_show_bdbuf_match_filter |
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490 | ( |
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491 | /*-------------------------------------------------------------------------*\ |
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492 | | Purpose: | |
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493 | | match bdbuf info with given filter | |
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494 | +---------------------------------------------------------------------------+ |
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495 | | Input Parameters: | |
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496 | \*-------------------------------------------------------------------------*/ |
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497 | const show_bdbuf_bdbuf_info_t *bdbuf_info, /* struct to store info of bdbuf */ |
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498 | const show_bdbuf_filter_t *filter, |
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499 | bool *is_match |
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500 | ) |
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501 | /*-------------------------------------------------------------------------*\ |
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502 | | Return Value: | |
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503 | | rtems_status_code | |
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504 | \*=========================================================================*/ |
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505 | { |
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506 | |
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507 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
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508 | bool unmatch = false; |
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509 | |
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510 | if (rc == RTEMS_SUCCESSFUL) { |
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511 | if (filter->bdbuf_all) { |
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512 | unmatch = false; |
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513 | } |
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514 | else { |
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515 | unmatch = ((filter->bdbuf_modified && !bdbuf_info->modified) || |
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516 | (filter->bdbuf_in_progress && !bdbuf_info->in_progress) || |
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517 | (filter->bdbuf_actual && !bdbuf_info->actual) || |
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518 | (filter->bdbuf_used && !(bdbuf_info->use_count > 0))); |
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519 | |
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520 | } |
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521 | *is_match = !unmatch; |
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522 | } |
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523 | return rc; |
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524 | } |
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525 | |
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526 | /*=========================================================================*\ |
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527 | | Function: | |
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528 | \*-------------------------------------------------------------------------*/ |
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529 | rtems_status_code rtems_show_bdbuf_print_wait_chain |
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530 | ( |
---|
531 | /*-------------------------------------------------------------------------*\ |
---|
532 | | Purpose: | |
---|
533 | | list tasks waiting in "transfer_sema" chain | |
---|
534 | +---------------------------------------------------------------------------+ |
---|
535 | | Input Parameters: | |
---|
536 | \*-------------------------------------------------------------------------*/ |
---|
537 | bdbuf_buffer *the_bdbuf /* this is the bdbuf structure */ |
---|
538 | ) |
---|
539 | /*-------------------------------------------------------------------------*\ |
---|
540 | | Return Value: | |
---|
541 | | rtems_status_code | |
---|
542 | \*=========================================================================*/ |
---|
543 | { |
---|
544 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
---|
545 | Chain_Control *the_chain_head; |
---|
546 | const Chain_Node *the_chain_node; |
---|
547 | int thread_cnt = 0; |
---|
548 | const Thread_Control *the_thread; |
---|
549 | Objects_Id thread_id; |
---|
550 | Objects_Name thread_name; |
---|
551 | uint32_t thread_name_nonstring; |
---|
552 | /* |
---|
553 | * get head of (fifo) wait chain |
---|
554 | */ |
---|
555 | if (rc == RTEMS_SUCCESSFUL) { |
---|
556 | the_chain_head = &(the_bdbuf->transfer_sema.Wait_queue.Queues.Fifo); |
---|
557 | the_chain_node = the_chain_head->first; |
---|
558 | } |
---|
559 | /* |
---|
560 | * walk through thread chain |
---|
561 | */ |
---|
562 | while ((rc == RTEMS_SUCCESSFUL) && |
---|
563 | (the_chain_node != _Chain_Tail( the_chain_head ))) { |
---|
564 | thread_cnt++; |
---|
565 | the_thread = (const Thread_Control *)the_chain_node; |
---|
566 | |
---|
567 | thread_id = the_thread->Object.id; |
---|
568 | thread_name = the_thread->Object.name; |
---|
569 | thread_name_nonstring = (uint32_t)thread_name.name_u32; |
---|
570 | printf("%20s %3d (0x%08" PRIx32 ") %c%c%c%c\n", |
---|
571 | ((thread_cnt == 1) ? "Threads waiting:" : ""), |
---|
572 | thread_cnt,thread_id, |
---|
573 | (char)((thread_name_nonstring >> 24) & 0xff), |
---|
574 | (char)((thread_name_nonstring >> 16) & 0xff), |
---|
575 | (char)((thread_name_nonstring >> 8) & 0xff), |
---|
576 | (char)((thread_name_nonstring >> 0) & 0xff)); |
---|
577 | |
---|
578 | the_chain_node = the_chain_node->next; |
---|
579 | } |
---|
580 | |
---|
581 | return rc; |
---|
582 | } |
---|
583 | |
---|
584 | /*=========================================================================*\ |
---|
585 | | Function: | |
---|
586 | \*-------------------------------------------------------------------------*/ |
---|
587 | rtems_status_code rtems_show_bdbuf_print |
---|
588 | ( |
---|
589 | /*-------------------------------------------------------------------------*\ |
---|
590 | | Purpose: | |
---|
591 | | print requested bdbuffer information | |
---|
592 | +---------------------------------------------------------------------------+ |
---|
593 | | Input Parameters: | |
---|
594 | \*-------------------------------------------------------------------------*/ |
---|
595 | const show_bdbuf_bdbuf_info_t *bdbuf_info, /* info of bdbuf */ |
---|
596 | show_bdbuf_selector_t * selector, /* selector, what to show */ |
---|
597 | bool print_header /* true: print header, not info */ |
---|
598 | ) |
---|
599 | /*-------------------------------------------------------------------------*\ |
---|
600 | | Return Value: | |
---|
601 | | rtems_status_code | |
---|
602 | \*=========================================================================*/ |
---|
603 | { |
---|
604 | |
---|
605 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
---|
606 | |
---|
607 | /* |
---|
608 | * 6 chars: print index of buffer |
---|
609 | */ |
---|
610 | if (rc == RTEMS_SUCCESSFUL) { |
---|
611 | if (print_header) { |
---|
612 | printf("INDEX "); |
---|
613 | } |
---|
614 | else { |
---|
615 | printf("%5u ",bdbuf_info->index); |
---|
616 | } |
---|
617 | } |
---|
618 | /* |
---|
619 | * 3 chars: print info about the pool id of this buffer |
---|
620 | */ |
---|
621 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
622 | ((selector->show_all) || |
---|
623 | (selector->show_use_count))) { |
---|
624 | if (print_header) { |
---|
625 | printf("PL "); |
---|
626 | } |
---|
627 | else { |
---|
628 | printf("%2u ",bdbuf_info->pool_id); |
---|
629 | } |
---|
630 | } |
---|
631 | |
---|
632 | /* |
---|
633 | * 4 chars: print info about chain (lru/free/mod) of this buffer |
---|
634 | */ |
---|
635 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
636 | ((selector->show_all) || |
---|
637 | (selector->show_node_chain))) { |
---|
638 | if (print_header) { |
---|
639 | printf("CHN "); |
---|
640 | } |
---|
641 | else { |
---|
642 | printf("%3s ", |
---|
643 | ((bdbuf_info->in_chain == bdbuf_chain_ident_free) ? "FRE" |
---|
644 | : (bdbuf_info->in_chain == bdbuf_chain_ident_lru) ? "LRU" |
---|
645 | : (bdbuf_info->in_chain == bdbuf_chain_ident_mod) ? "MOD" |
---|
646 | : "???")); |
---|
647 | } |
---|
648 | } |
---|
649 | |
---|
650 | /* |
---|
651 | * 7 chars: print info about device of this buffer |
---|
652 | */ |
---|
653 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
654 | ((selector->show_all) || |
---|
655 | (selector->show_dev))) { |
---|
656 | if (print_header) { |
---|
657 | printf("DEVICE "); |
---|
658 | } |
---|
659 | else { |
---|
660 | printf("%3" PRIu32 "%2" PRIu32, |
---|
661 | ((bdbuf_info->dev == -1) |
---|
662 | ? 0 : rtems_filesystem_dev_major_t(bdbuf_info->dev)), |
---|
663 | ((bdbuf_info->dev == -1) |
---|
664 | ? 0 : rtems_filesystem_dev_minor_t(bdbuf_info->dev))); |
---|
665 | } |
---|
666 | } |
---|
667 | |
---|
668 | /* |
---|
669 | * 7 chars: print info about block number of this buffer |
---|
670 | */ |
---|
671 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
672 | ((selector->show_all) || |
---|
673 | (selector->show_blocknum))) { |
---|
674 | if (print_header) { |
---|
675 | printf("BLOCK "); |
---|
676 | } |
---|
677 | else { |
---|
678 | printf("%6" PRIu32,bdbuf_info->blknum); |
---|
679 | } |
---|
680 | } |
---|
681 | |
---|
682 | /* |
---|
683 | * 4 chars: print info about use count of this buffer |
---|
684 | */ |
---|
685 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
686 | ((selector->show_all) || |
---|
687 | (selector->show_use_count))) { |
---|
688 | if (print_header) { |
---|
689 | printf("USE "); |
---|
690 | } |
---|
691 | else { |
---|
692 | printf("%3u ",bdbuf_info->use_count); |
---|
693 | } |
---|
694 | } |
---|
695 | |
---|
696 | /* |
---|
697 | * 4 chars: print info about state of this buffer |
---|
698 | */ |
---|
699 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
700 | ((selector->show_all) || |
---|
701 | (selector->show_state))) { |
---|
702 | if (print_header) { |
---|
703 | printf("STA "); |
---|
704 | } |
---|
705 | else { |
---|
706 | printf("%c%c%c ", |
---|
707 | (bdbuf_info->modified ? 'M' : '.'), |
---|
708 | (bdbuf_info->in_progress ? 'P' : '.'), |
---|
709 | (bdbuf_info->actual ? 'A' : '.')); |
---|
710 | } |
---|
711 | } |
---|
712 | |
---|
713 | /* |
---|
714 | * 42 chars: print info about error of this buffer |
---|
715 | */ |
---|
716 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
717 | ((selector->show_all) || |
---|
718 | (selector->show_error))) { |
---|
719 | if (print_header) { |
---|
720 | printf("%20s:%-10s ","RTEMS STATUS","ERRNO"); |
---|
721 | } |
---|
722 | else { |
---|
723 | printf("%20s:%-10s ", |
---|
724 | ((bdbuf_info->status == RTEMS_SUCCESSFUL) |
---|
725 | ? "SUCCESSFUL" : rtems_status_text(bdbuf_info->status)), |
---|
726 | ((bdbuf_info->status == RTEMS_SUCCESSFUL) |
---|
727 | ? "" : strerror(bdbuf_info->error))); |
---|
728 | } |
---|
729 | } |
---|
730 | /* |
---|
731 | * FIXME: add info about waiting chain |
---|
732 | */ |
---|
733 | printf("\n"); |
---|
734 | return rc; |
---|
735 | } |
---|
736 | |
---|
737 | /*=========================================================================*\ |
---|
738 | | Function: | |
---|
739 | \*-------------------------------------------------------------------------*/ |
---|
740 | void rtems_bdbuf_show_fnc |
---|
741 | ( |
---|
742 | /*-------------------------------------------------------------------------*\ |
---|
743 | | Purpose: | |
---|
744 | | list all bdbufs with their content | |
---|
745 | +---------------------------------------------------------------------------+ |
---|
746 | | Input Parameters: | |
---|
747 | \*-------------------------------------------------------------------------*/ |
---|
748 | int argc, |
---|
749 | char **argv, |
---|
750 | rtems_monitor_command_arg_t* command_arg, |
---|
751 | bool verbose |
---|
752 | ) |
---|
753 | /*-------------------------------------------------------------------------*\ |
---|
754 | | Return Value: | |
---|
755 | | rtems_status_code | |
---|
756 | \*=========================================================================*/ |
---|
757 | { |
---|
758 | rtems_status_code rc = RTEMS_SUCCESSFUL; |
---|
759 | show_bdbuf_filter_t filter; |
---|
760 | show_bdbuf_selector_t selector; |
---|
761 | show_bdbuf_bdbuf_info_t bdbuf_info; |
---|
762 | |
---|
763 | bdbuf_pool *curr_pool,*pool_base; |
---|
764 | int pool_cnt,pool_idx; |
---|
765 | int bdbuf_idx; |
---|
766 | bool bdbuf_matches; |
---|
767 | int matched_cnt,un_matched_cnt; |
---|
768 | |
---|
769 | /* |
---|
770 | * analyze command line options |
---|
771 | */ |
---|
772 | if (rc == RTEMS_SUCCESSFUL) { |
---|
773 | rc = rtems_bdbuf_show_getargs (argc,argv, |
---|
774 | &filter,&selector); |
---|
775 | } |
---|
776 | |
---|
777 | /* |
---|
778 | * get buffer pool information |
---|
779 | */ |
---|
780 | if (rc == RTEMS_SUCCESSFUL) { |
---|
781 | rc = rtems_bdbuf_show_get_bufpool(&pool_base,&pool_cnt); |
---|
782 | if (rc != RTEMS_SUCCESSFUL) { |
---|
783 | printf("%s: ERROR: no buffer pool found\n",argv[0]); |
---|
784 | } |
---|
785 | } |
---|
786 | /* |
---|
787 | * for all or selected buffer pool(s) |
---|
788 | */ |
---|
789 | for (pool_idx = 0; |
---|
790 | (rc == RTEMS_SUCCESSFUL) && (pool_idx < pool_cnt); |
---|
791 | pool_idx++) { |
---|
792 | if ((filter.pool_id < 0) || |
---|
793 | (filter.pool_id == pool_idx)) { |
---|
794 | curr_pool = pool_base + pool_idx; |
---|
795 | /* |
---|
796 | * print pool header |
---|
797 | */ |
---|
798 | if (rc == RTEMS_SUCCESSFUL) { |
---|
799 | rc = rtems_bdbuf_show_pool_header(pool_idx,curr_pool); |
---|
800 | } |
---|
801 | if (rc == RTEMS_SUCCESSFUL) { |
---|
802 | matched_cnt = 0; |
---|
803 | un_matched_cnt = 0; |
---|
804 | /* |
---|
805 | * print header for bdbuf |
---|
806 | */ |
---|
807 | if (rc == RTEMS_SUCCESSFUL) { |
---|
808 | rc = rtems_show_bdbuf_print(NULL,&selector, |
---|
809 | true); |
---|
810 | } |
---|
811 | /* |
---|
812 | * for all bdbufs in this pool |
---|
813 | */ |
---|
814 | for (bdbuf_idx = 0; |
---|
815 | ((rc == RTEMS_SUCCESSFUL) && |
---|
816 | (bdbuf_idx < curr_pool->nblks)); |
---|
817 | bdbuf_idx++) { |
---|
818 | /* |
---|
819 | * get infos about bdbuf |
---|
820 | */ |
---|
821 | if (rc == RTEMS_SUCCESSFUL) { |
---|
822 | rc = rtems_show_bdbuf_get_bdbuf_info |
---|
823 | (&(curr_pool->bdbufs[bdbuf_idx]), |
---|
824 | bdbuf_idx, |
---|
825 | curr_pool, |
---|
826 | &bdbuf_info); |
---|
827 | } |
---|
828 | /* |
---|
829 | * check, if bdbuf matches selection criteria |
---|
830 | */ |
---|
831 | if (rc == RTEMS_SUCCESSFUL) { |
---|
832 | rc = rtems_show_bdbuf_match_filter(&bdbuf_info,&filter, |
---|
833 | &bdbuf_matches); |
---|
834 | } |
---|
835 | /* |
---|
836 | * print info about bdbuf |
---|
837 | */ |
---|
838 | if (rc == RTEMS_SUCCESSFUL) { |
---|
839 | if (bdbuf_matches) { |
---|
840 | rc = rtems_show_bdbuf_print(&bdbuf_info,&selector, |
---|
841 | false); |
---|
842 | if ((rc == RTEMS_SUCCESSFUL) && |
---|
843 | selector.show_sema) { |
---|
844 | rc = rtems_show_bdbuf_print_wait_chain(&(curr_pool->bdbufs[bdbuf_idx])); |
---|
845 | } |
---|
846 | matched_cnt++; |
---|
847 | } |
---|
848 | else { |
---|
849 | un_matched_cnt++; |
---|
850 | } |
---|
851 | } |
---|
852 | } |
---|
853 | /* |
---|
854 | * print match statistics and footer |
---|
855 | */ |
---|
856 | if (rc == RTEMS_SUCCESSFUL) { |
---|
857 | printf("%d bdbufs printed, %d bdbufs suppressed\n", |
---|
858 | matched_cnt,un_matched_cnt); |
---|
859 | } |
---|
860 | } |
---|
861 | } |
---|
862 | } |
---|
863 | } |
---|
864 | |
---|
865 | static rtems_monitor_command_entry_t rtems_show_bdbuf_cmds[] = { |
---|
866 | { |
---|
867 | "bdbuf_show", |
---|
868 | "usage: bdbuf_show\n", |
---|
869 | 0, |
---|
870 | rtems_bdbuf_show_fnc, |
---|
871 | { 0 }, |
---|
872 | 0 |
---|
873 | } |
---|
874 | }; |
---|
875 | |
---|
876 | #ifndef ARRAY_CNT |
---|
877 | #define ARRAY_CNT(arr) (sizeof((arr))/sizeof((arr)[0])) |
---|
878 | #endif |
---|
879 | |
---|
880 | /*=========================================================================*\ |
---|
881 | | Function: | |
---|
882 | \*-------------------------------------------------------------------------*/ |
---|
883 | rtems_status_code rtems_bdbuf_show_init |
---|
884 | ( |
---|
885 | /*-------------------------------------------------------------------------*\ |
---|
886 | | Purpose: | |
---|
887 | | add command(s) to monitor | |
---|
888 | +---------------------------------------------------------------------------+ |
---|
889 | | Input Parameters: | |
---|
890 | \*-------------------------------------------------------------------------*/ |
---|
891 | void /* none up to now */ |
---|
892 | ) |
---|
893 | /*-------------------------------------------------------------------------*\ |
---|
894 | | Return Value: | |
---|
895 | | rtems_status_code | |
---|
896 | \*=========================================================================*/ |
---|
897 | { |
---|
898 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
---|
899 | int item; |
---|
900 | |
---|
901 | for (item = 0; |
---|
902 | (sc == RTEMS_SUCCESSFUL) && (item < ARRAY_CNT(rtems_show_bdbuf_cmds)); |
---|
903 | item++) { |
---|
904 | if (0 == rtems_monitor_insert_cmd (&rtems_show_bdbuf_cmds[item])) { |
---|
905 | sc = RTEMS_INVALID_NAME; |
---|
906 | } |
---|
907 | } |
---|
908 | return sc; |
---|
909 | } |
---|