Changeset db7f70a in rtems


Ignore:
Timestamp:
Nov 2, 1999, 6:47:06 PM (22 years ago)
Author:
Joel Sherrill <joel.sherrill@…>
Branches:
4.10, 4.11, 4.8, 4.9, 5, master
Children:
68003979
Parents:
43ed935
Message:

Split cancel.c into multiple files.

Files:
12 added
3 edited

Legend:

Unmodified
Added
Removed

  • c/src/exec/posix/src/Makefile.in

    r43ed935 rdb7f70a  
    1818
    1919# These are really in the stand but not really functional
    20 BUILD_FOR_NOW_C_PIECES = aio cancel utsname
     20BUILD_FOR_NOW_C_PIECES = aio utsname
    2121
    2222ENOSYS_C_PIECES = execl execle execlp execv execve execvp fork pthreadatfork \
    2323    wait waitpid
    2424
     25CANCEL_C_PIECES= cancel cancelrun cleanuppop cleanuppush setcancelstate \
     26    setcanceltype testcancel
     27
    2528CONDITION_VARIABLE_C_PIECES= cond condattrdestroy condattrgetpshared \
    2629    condattrinit condattrsetpshared condbroadcast conddefaultattributes \
    27     condmp condsignal condsignalsupp condtimedwait condwait condwaitsupp
     30    conddestroy condinit condmp condsignal condsignalsupp condtimedwait \
     31    condwait condwaitsupp
    2832
    2933KEY_C_PIECES= key keycreate keydelete keygetspecific keyrundestructors \
    30   keysetspecific
     34    keysetspecific
    3135
    3236MESSAGE_QUEUE_C_PIECES= mqueue mqueueclose mqueuecreatesupp mqueuedeletesupp \
    … …  
    7074    clockgetres clockgettime clocksetenableattr clocksettime nanosleep
    7175
    72 C_PIECES = adasupp $(CONDITION_VARIABLE_C_PIECES) \
     76C_PIECES = adasupp $(CANCEL_C_PIECES) $(CONDITION_VARIABLE_C_PIECES) \
    7377    getpid $(KEY_C_PIECES) $(MESSAGE_QUEUE_C_PIECES) \
    7478    $(MUTEX_C_PIECES) $(PTHREAD_C_PIECES) \

  • c/src/exec/posix/src/cancel.c

    r43ed935 rdb7f70a  
    1414#include <rtems/posix/pthread.h>
    1515#include <rtems/posix/threadsup.h>
    16 
    17 /*PAGE
    18  *
    19  *  POSIX_Thread_cancel_run
    20  *
    21  */
    22 
    23 void POSIX_Thread_cancel_run(
    24   Thread_Control *the_thread
    25 )
    26 {
    27   int                                old_cancel_state;
    28   POSIX_Cancel_Handler_control      *handler;
    29   Chain_Control                     *handler_stack;
    30   POSIX_API_Control                 *thread_support;
    31   ISR_Level                          level;
    32  
    33   thread_support = the_thread->API_Extensions[ THREAD_API_POSIX ];
    34  
    35   handler_stack = &thread_support->Cancellation_Handlers;
    36  
    37   old_cancel_state = thread_support->cancelability_state;
    38 
    39   thread_support->cancelability_state = PTHREAD_CANCEL_DISABLE;
    40 
    41   while ( !_Chain_Is_empty( handler_stack ) ) {
    42     _ISR_Disable( level );
    43       handler = (POSIX_Cancel_Handler_control *) _Chain_Tail( handler_stack );
    44       _Chain_Extract_unprotected( &handler->Node );
    45     _ISR_Enable( level );
    46  
    47     (*handler->routine)( handler->arg );
    48 
    49     _Workspace_Free( handler );
    50   }
    51 
    52   thread_support->cancelation_requested = 0;
    53 
    54   thread_support->cancelability_state = old_cancel_state;
    55 }
    5616
    5717/*PAGE
    … …  
    8545  return POSIX_BOTTOM_REACHED();
    8646}
    87 
    88 /*PAGE
    89  *
    90  *  18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
    91  */
    92 
    93 int pthread_setcancelstate(
    94   int  state,
    95   int *oldstate
    96 )
    97 {
    98   POSIX_API_Control                 *thread_support;
    99 
    100   if ( !oldstate )
    101     return EINVAL;
    102 
    103   if ( state != PTHREAD_CANCEL_ENABLE && state != PTHREAD_CANCEL_DISABLE )
    104     return EINVAL;
    105 
    106   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    107  
    108   *oldstate = thread_support->cancelability_state;
    109   thread_support->cancelability_state = state;
    110  
    111   if ( thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
    112        thread_support->cancelability_type == PTHREAD_CANCEL_ASYNCHRONOUS &&
    113        thread_support->cancelation_requested )
    114     POSIX_Thread_cancel_run( _Thread_Executing );
    115  
    116   return 0;
    117 }
    118 
    119 /*PAGE
    120  *
    121  *  18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
    122  */
    123 
    124 int pthread_setcanceltype(
    125   int  type,
    126   int *oldtype
    127 )
    128 {
    129   POSIX_API_Control                 *thread_support;
    130  
    131   if ( !oldtype )
    132     return EINVAL;
    133  
    134   if ( type != PTHREAD_CANCEL_DEFERRED && type != PTHREAD_CANCEL_ASYNCHRONOUS )
    135     return EINVAL;
    136  
    137   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    138 
    139   *oldtype = thread_support->cancelability_type;
    140   thread_support->cancelability_type = type;
    141 
    142   if ( thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
    143        thread_support->cancelability_type == PTHREAD_CANCEL_ASYNCHRONOUS &&
    144        thread_support->cancelation_requested )
    145     POSIX_Thread_cancel_run( _Thread_Executing );
    146 
    147   return 0;
    148 }
    149 
    150 /*PAGE
    151  *
    152  *  18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
    153  */
    154 
    155 void pthread_testcancel( void )
    156 {
    157   POSIX_API_Control                 *thread_support;
    158 
    159   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    160  
    161   if ( thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
    162        thread_support->cancelation_requested )
    163     POSIX_Thread_cancel_run( _Thread_Executing );
    164 }
    165 
    166 /*PAGE
    167  *
    168  *  18.2.3.1 Establishing Cancellation Handlers, P1003.1c/Draft 10, p. 184
    169  */
    170 
    171 void pthread_cleanup_push(
    172   void   (*routine)( void * ),
    173   void    *arg
    174 )
    175 {
    176   POSIX_Cancel_Handler_control      *handler;
    177   Chain_Control                     *handler_stack;
    178   POSIX_API_Control                 *thread_support;
    179  
    180   if ( !routine )
    181     return;          /* XXX what to do really? */
    182 
    183   handler = _Workspace_Allocate( sizeof( POSIX_Cancel_Handler_control ) );
    184 
    185   if ( !handler )
    186     return;          /* XXX what to do really? */
    187 
    188   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    189 
    190   handler_stack = &thread_support->Cancellation_Handlers;
    191 
    192   handler->routine = routine;
    193   handler->arg = arg;
    194 
    195   _Chain_Append( handler_stack, &handler->Node );
    196 }
    197 
    198 /*PAGE
    199  *
    200  *  18.2.3.1 Establishing Cancellation Handlers, P1003.1c/Draft 10, p. 184
    201  */
    202 
    203 void pthread_cleanup_pop(
    204   int    execute
    205 )
    206 {
    207   POSIX_Cancel_Handler_control      *handler;
    208   Chain_Control                     *handler_stack;
    209   POSIX_API_Control                 *thread_support;
    210   ISR_Level                          level;
    211  
    212   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    213  
    214   handler_stack = &thread_support->Cancellation_Handlers;
    215 
    216   if ( _Chain_Is_empty( handler_stack ) )
    217     return;
    218  
    219   _ISR_Disable( level );
    220     handler = (POSIX_Cancel_Handler_control *) _Chain_Tail( handler_stack );
    221     _Chain_Extract_unprotected( &handler->Node );
    222   _ISR_Enable( level );
    223 
    224   if ( execute )
    225     (*handler->routine)( handler->arg );
    226  
    227   _Workspace_Free( handler );
    228 }

  • cpukit/posix/src/cancel.c

    r43ed935 rdb7f70a  
    1414#include <rtems/posix/pthread.h>
    1515#include <rtems/posix/threadsup.h>
    16 
    17 /*PAGE
    18  *
    19  *  POSIX_Thread_cancel_run
    20  *
    21  */
    22 
    23 void POSIX_Thread_cancel_run(
    24   Thread_Control *the_thread
    25 )
    26 {
    27   int                                old_cancel_state;
    28   POSIX_Cancel_Handler_control      *handler;
    29   Chain_Control                     *handler_stack;
    30   POSIX_API_Control                 *thread_support;
    31   ISR_Level                          level;
    32  
    33   thread_support = the_thread->API_Extensions[ THREAD_API_POSIX ];
    34  
    35   handler_stack = &thread_support->Cancellation_Handlers;
    36  
    37   old_cancel_state = thread_support->cancelability_state;
    38 
    39   thread_support->cancelability_state = PTHREAD_CANCEL_DISABLE;
    40 
    41   while ( !_Chain_Is_empty( handler_stack ) ) {
    42     _ISR_Disable( level );
    43       handler = (POSIX_Cancel_Handler_control *) _Chain_Tail( handler_stack );
    44       _Chain_Extract_unprotected( &handler->Node );
    45     _ISR_Enable( level );
    46  
    47     (*handler->routine)( handler->arg );
    48 
    49     _Workspace_Free( handler );
    50   }
    51 
    52   thread_support->cancelation_requested = 0;
    53 
    54   thread_support->cancelability_state = old_cancel_state;
    55 }
    5616
    5717/*PAGE
    … …  
    8545  return POSIX_BOTTOM_REACHED();
    8646}
    87 
    88 /*PAGE
    89  *
    90  *  18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
    91  */
    92 
    93 int pthread_setcancelstate(
    94   int  state,
    95   int *oldstate
    96 )
    97 {
    98   POSIX_API_Control                 *thread_support;
    99 
    100   if ( !oldstate )
    101     return EINVAL;
    102 
    103   if ( state != PTHREAD_CANCEL_ENABLE && state != PTHREAD_CANCEL_DISABLE )
    104     return EINVAL;
    105 
    106   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    107  
    108   *oldstate = thread_support->cancelability_state;
    109   thread_support->cancelability_state = state;
    110  
    111   if ( thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
    112        thread_support->cancelability_type == PTHREAD_CANCEL_ASYNCHRONOUS &&
    113        thread_support->cancelation_requested )
    114     POSIX_Thread_cancel_run( _Thread_Executing );
    115  
    116   return 0;
    117 }
    118 
    119 /*PAGE
    120  *
    121  *  18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
    122  */
    123 
    124 int pthread_setcanceltype(
    125   int  type,
    126   int *oldtype
    127 )
    128 {
    129   POSIX_API_Control                 *thread_support;
    130  
    131   if ( !oldtype )
    132     return EINVAL;
    133  
    134   if ( type != PTHREAD_CANCEL_DEFERRED && type != PTHREAD_CANCEL_ASYNCHRONOUS )
    135     return EINVAL;
    136  
    137   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    138 
    139   *oldtype = thread_support->cancelability_type;
    140   thread_support->cancelability_type = type;
    141 
    142   if ( thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
    143        thread_support->cancelability_type == PTHREAD_CANCEL_ASYNCHRONOUS &&
    144        thread_support->cancelation_requested )
    145     POSIX_Thread_cancel_run( _Thread_Executing );
    146 
    147   return 0;
    148 }
    149 
    150 /*PAGE
    151  *
    152  *  18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183
    153  */
    154 
    155 void pthread_testcancel( void )
    156 {
    157   POSIX_API_Control                 *thread_support;
    158 
    159   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    160  
    161   if ( thread_support->cancelability_state == PTHREAD_CANCEL_ENABLE &&
    162        thread_support->cancelation_requested )
    163     POSIX_Thread_cancel_run( _Thread_Executing );
    164 }
    165 
    166 /*PAGE
    167  *
    168  *  18.2.3.1 Establishing Cancellation Handlers, P1003.1c/Draft 10, p. 184
    169  */
    170 
    171 void pthread_cleanup_push(
    172   void   (*routine)( void * ),
    173   void    *arg
    174 )
    175 {
    176   POSIX_Cancel_Handler_control      *handler;
    177   Chain_Control                     *handler_stack;
    178   POSIX_API_Control                 *thread_support;
    179  
    180   if ( !routine )
    181     return;          /* XXX what to do really? */
    182 
    183   handler = _Workspace_Allocate( sizeof( POSIX_Cancel_Handler_control ) );
    184 
    185   if ( !handler )
    186     return;          /* XXX what to do really? */
    187 
    188   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    189 
    190   handler_stack = &thread_support->Cancellation_Handlers;
    191 
    192   handler->routine = routine;
    193   handler->arg = arg;
    194 
    195   _Chain_Append( handler_stack, &handler->Node );
    196 }
    197 
    198 /*PAGE
    199  *
    200  *  18.2.3.1 Establishing Cancellation Handlers, P1003.1c/Draft 10, p. 184
    201  */
    202 
    203 void pthread_cleanup_pop(
    204   int    execute
    205 )
    206 {
    207   POSIX_Cancel_Handler_control      *handler;
    208   Chain_Control                     *handler_stack;
    209   POSIX_API_Control                 *thread_support;
    210   ISR_Level                          level;
    211  
    212   thread_support = _Thread_Executing->API_Extensions[ THREAD_API_POSIX ];
    213  
    214   handler_stack = &thread_support->Cancellation_Handlers;
    215 
    216   if ( _Chain_Is_empty( handler_stack ) )
    217     return;
    218  
    219   _ISR_Disable( level );
    220     handler = (POSIX_Cancel_Handler_control *) _Chain_Tail( handler_stack );
    221     _Chain_Extract_unprotected( &handler->Node );
    222   _ISR_Enable( level );
    223 
    224   if ( execute )
    225     (*handler->routine)( handler->arg );
    226  
    227   _Workspace_Free( handler );
    228 }
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