Indented with src/scripts/indent-emp.
This commit is contained in:
parent
5f263a7753
commit
9b7adfbecc
437 changed files with 52211 additions and 51052 deletions
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@ -47,13 +47,13 @@
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#include "prototypes.h"
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#include <stdarg.h>
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#ifdef _EMPTH_POSIX
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static pthread_key_t ctx_key;
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static int empth_flags;
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static char **udata; /* pointer to out global context */
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static char **udata; /* pointer to out global context */
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static pthread_mutex_t mtx_ctxsw; /* thread in critical section */
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static pthread_mutex_t mtx_ctxsw; /* thread in critical section */
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#if 0
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@ -68,25 +68,25 @@ empth_start(void *ctx)
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extern emp_sig_t panic();
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extern emp_sig_t shutdwn();
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/* actually it should inherit all this from main but... */
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/* actually it should inherit all this from main but... */
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#ifdef SA_SIGINFO
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act.sa_flags = SA_SIGINFO;
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#endif
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sigemptyset (&act.sa_mask);
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sigemptyset(&act.sa_mask);
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act.sa_handler = shutdwn;
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/* pthreads on Linux use SIGUSR1 (*shrug*) so only catch it if not on
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a Linux box running POSIX threads -- STM */
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/* pthreads on Linux use SIGUSR1 (*shrug*) so only catch it if not on
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a Linux box running POSIX threads -- STM */
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#if !(defined(__linux__) && defined(_EMPTH_POSIX))
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sigaction (SIGUSR1, &act, NULL);
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sigaction(SIGUSR1, &act, NULL);
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#endif
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sigaction (SIGTERM, &act, NULL);
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sigaction (SIGINT, &act, NULL);
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sigaction(SIGTERM, &act, NULL);
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sigaction(SIGINT, &act, NULL);
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act.sa_handler = panic;
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sigaction (SIGBUS, &act, NULL);
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sigaction (SIGSEGV, &act, NULL);
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sigaction (SIGILL, &act, NULL);
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sigaction (SIGFPE, &act, NULL);
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sigaction(SIGBUS, &act, NULL);
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sigaction(SIGSEGV, &act, NULL);
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sigaction(SIGILL, &act, NULL);
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sigaction(SIGFPE, &act, NULL);
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act.sa_handler = SIG_IGN;
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sigaction(SIGPIPE, &act, NULL);
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@ -100,62 +100,61 @@ empth_start(void *ctx)
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((empth_t *)ctx)->ep(((empth_t *)ctx)->ud);
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empth_exit();
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return NULL;
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}
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}
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static void
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empth_status(char *format, ...)
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{
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va_list ap;
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static struct timeval startTime;
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struct timeval tv;
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char buf[1024];
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int sec, msec;
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empth_t *a;
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va_start(ap, format);
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if (empth_flags & EMPTH_PRINT) {
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if (startTime.tv_sec == 0)
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gettimeofday(&startTime, 0);
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gettimeofday(&tv, 0);
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sec = tv.tv_sec - startTime.tv_sec;
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msec = (tv.tv_usec - startTime.tv_usec) / 1000;
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if (msec < 0) {
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sec++;
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msec += 1000;
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}
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vsprintf(buf, format, ap);
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a = empth_self();
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printf("%d:%02d.%03d %17s: %s\n", sec/60, sec%60, msec/10,
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a->name,
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buf);
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va_list ap;
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static struct timeval startTime;
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struct timeval tv;
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char buf[1024];
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int sec, msec;
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empth_t *a;
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va_start(ap, format);
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if (empth_flags & EMPTH_PRINT) {
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if (startTime.tv_sec == 0)
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gettimeofday(&startTime, 0);
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gettimeofday(&tv, 0);
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sec = tv.tv_sec - startTime.tv_sec;
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msec = (tv.tv_usec - startTime.tv_usec) / 1000;
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if (msec < 0) {
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sec++;
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msec += 1000;
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}
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va_end(ap);
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vsprintf(buf, format, ap);
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a = empth_self();
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printf("%d:%02d.%03d %17s: %s\n", sec / 60, sec % 60, msec / 10,
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a->name, buf);
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}
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va_end(ap);
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}
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int
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empth_init (char **ctx_ptr, int flags)
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empth_init(char **ctx_ptr, int flags)
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{
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empth_t *ctx;
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struct sigaction act;
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pthread_key_create(&ctx_key, 0);
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pthread_key_create(&ctx_key, 0);
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#ifdef _DECTHREADS_
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pthread_mutex_init(&mtx_ctxsw, pthread_mutexattr_default);
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#else
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pthread_mutex_init(&mtx_ctxsw, 0);
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#endif
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act.sa_flags = 0;
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sigemptyset (&act.sa_mask);
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sigemptyset(&act.sa_mask);
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act.sa_handler = empth_alarm;
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sigaction(SIGALRM, &act, NULL);
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udata = ctx_ptr;
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ctx = (empth_t *)malloc(sizeof(empth_t));
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if(!ctx) {
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if (!ctx) {
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logerror("pthread init failed: not enough memory");
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exit(1);
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}
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@ -164,15 +163,15 @@ empth_init (char **ctx_ptr, int flags)
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ctx->ep = 0;
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ctx->ud = 0;
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ctx->id = pthread_self();
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ctx->state = 0;
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ctx->state = 0;
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pthread_setspecific(ctx_key, ctx);
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pthread_mutex_lock(&mtx_ctxsw);
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pthread_mutex_lock(&mtx_ctxsw);
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empth_flags = flags;
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logerror("pthreads initialized");
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return 0;
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}
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/*
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* prio can be used for setting scheeduling policy but...
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* it seems to be optional in POSIX threads and Solaris
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@ -180,25 +179,26 @@ empth_init (char **ctx_ptr, int flags)
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* More then that priority is not needed even in lwp threads.
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*/
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empth_t *
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empth_create (int prio, void (*entry)(), int size, int flags,
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char *name, char *desc, void *ud)
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empth_create(int prio, void (*entry) (), int size, int flags,
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char *name, char *desc, void *ud)
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{
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pthread_t t;
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pthread_attr_t attr;
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empth_t *ctx;
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int eno;
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empth_status("creating new thread %s:%s", name, desc);
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ctx = (empth_t *)malloc(sizeof(empth_t));
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if(!ctx) {
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logerror("not enough memoty to create thread: %s (%s)", name, desc);
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if (!ctx) {
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logerror("not enough memoty to create thread: %s (%s)", name,
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desc);
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return NULL;
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}
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ctx->name = strdup(name);
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ctx->desc = strdup(desc);
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ctx->ud = ud;
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ctx->state = 0;
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ctx->state = 0;
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ctx->ep = entry;
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#ifdef _DECTHREADS_
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@ -206,27 +206,26 @@ empth_create (int prio, void (*entry)(), int size, int flags,
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#else
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eno = pthread_attr_init(&attr);
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#endif
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if(eno) {
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if (eno) {
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logerror("can not create thread attribute %s (%s): %s", name, desc,
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strerror(eno));
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goto bad;
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}
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#if defined(__linux__)
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/* Linux doesn't let you adjust the stack */
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/* Linux doesn't let you adjust the stack */
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#elif defined(_DECTHREADS_)
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/* DEC does not have PTHREAD_STACK_MIN constant */
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/* Do not go below default size */
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if(size > pthread_attr_getstacksize(attr))
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pthread_attr_setstacksize(&attr, size);
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if (size > pthread_attr_getstacksize(attr))
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pthread_attr_setstacksize(&attr, size);
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#else
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if(size < PTHREAD_STACK_MIN)
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size = PTHREAD_STACK_MIN + 1;
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if (size < PTHREAD_STACK_MIN)
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size = PTHREAD_STACK_MIN + 1;
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pthread_attr_setstacksize(&attr, size);
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#endif
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pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
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pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
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#ifdef _DECTHREADS_
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eno = pthread_create(&t, attr, empth_start, (void *)ctx) ? errno : 0;
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@ -234,14 +233,14 @@ empth_create (int prio, void (*entry)(), int size, int flags,
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eno = pthread_create(&t, &attr, empth_start, (void *)ctx);
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#endif
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if (eno) {
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logerror("can not create thread: %s (%s): %s", name, desc,
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strerror(eno));
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goto bad;
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logerror("can not create thread: %s (%s): %s", name, desc,
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strerror(eno));
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goto bad;
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}
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empth_status("new thread id is %d", t);
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return ctx;
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pthread_attr_destroy(&attr);
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bad:
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bad:
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pthread_attr_destroy(&attr);
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free(ctx);
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return NULL;
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@ -255,7 +254,7 @@ empth_setctx(void *ct)
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empth_t *ctx_ptr;
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#ifdef _DECTHREADS_
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pthread_getspecific(ctx_key, (pthread_addr_t *)&ctx_ptr);
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pthread_getspecific(ctx_key, (pthread_addr_t *) & ctx_ptr);
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#else
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ctx_ptr = (empth_t *)pthread_getspecific(ctx_key);
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#endif
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@ -266,13 +265,13 @@ empth_setctx(void *ct)
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}
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#endif
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static void
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static void
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empth_restorectx(void)
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{
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empth_t *ctx_ptr;
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#ifdef _DECTHREADS_
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pthread_getspecific(ctx_key, (pthread_addr_t *)&ctx_ptr);
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pthread_getspecific(ctx_key, (pthread_addr_t *) & ctx_ptr);
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#else
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ctx_ptr = (empth_t *)pthread_getspecific(ctx_key);
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#endif
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@ -288,47 +287,47 @@ empth_t *
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empth_self(void)
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{
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#ifdef _DECTHREADS_
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empth_t *ctx_ptr;
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pthread_getspecific(ctx_key, (pthread_addr_t *)&ctx_ptr);
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return ctx_ptr;
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empth_t *ctx_ptr;
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pthread_getspecific(ctx_key, (pthread_addr_t *) & ctx_ptr);
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return ctx_ptr;
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#else
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return (empth_t *)pthread_getspecific(ctx_key);
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return (empth_t *)pthread_getspecific(ctx_key);
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#endif
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}
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void
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empth_exit (void)
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empth_exit(void)
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{
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empth_t *ctx_ptr;
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pthread_mutex_unlock(&mtx_ctxsw);
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empth_status("empth_exit");
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#ifdef _DECTHREADS_
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pthread_getspecific(ctx_key, (pthread_addr_t *)&ctx_ptr);
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pthread_getspecific(ctx_key, (pthread_addr_t *) & ctx_ptr);
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#else
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ctx_ptr = (empth_t *)pthread_getspecific(ctx_key);
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#endif
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/* We want to leave the main thread around forever, until it's time
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for it to die for real (in a shutdown) */
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/* We want to leave the main thread around forever, until it's time
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for it to die for real (in a shutdown) */
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if (!strcmp(ctx_ptr->name, "Main")) {
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while(1) {
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while (1) {
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#ifdef _DECTHREADS_
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pthread_yield();
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pthread_yield();
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#endif
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sleep(60);
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}
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sleep(60);
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}
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}
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free(ctx_ptr);
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pthread_exit(0);
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}
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void
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empth_yield (void)
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empth_yield(void)
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{
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pthread_mutex_unlock(&mtx_ctxsw);
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sleep(10); /* take a nap pthread_yield(); */
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sleep(10); /* take a nap pthread_yield(); */
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pthread_mutex_lock(&mtx_ctxsw);
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empth_restorectx();
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}
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@ -337,16 +336,16 @@ void
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empth_terminate(empth_t *a)
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{
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/* logerror("calling non supported function empth_terminate: %s:%d",
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__FILE__, __LINE__); */
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__FILE__, __LINE__); */
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empth_status("killing thread %s", a->name);
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a->state = EMPTH_KILLED;
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#ifndef _DECTHREADS_
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/* DEC and OSX do not have pthread_kill. Not sure that cancel is correct. */
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#if (!defined __ppc__)
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pthread_kill(a->id, SIGALRM);
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#endif
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#if (!defined __ppc__)
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pthread_kill(a->id, SIGALRM);
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#endif
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return;
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#endif
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return;
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}
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void
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@ -357,18 +356,18 @@ empth_select(int fd, int flags)
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fd_set writemask;
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struct timeval tv;
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int n;
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pthread_mutex_unlock(&mtx_ctxsw);
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empth_status("%s select on %d",
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flags == EMPTH_FD_READ ? "read" : "write", fd );
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flags == EMPTH_FD_READ ? "read" : "write", fd);
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while (1) {
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tv.tv_sec = 1000000;
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tv.tv_usec = 0;
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FD_ZERO(&readmask);
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FD_ZERO(&writemask);
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switch(flags) {
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switch (flags) {
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case EMPTH_FD_READ:
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FD_SET(fd, &readmask);
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break;
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@ -380,8 +379,8 @@ empth_select(int fd, int flags)
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empth_exit();
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}
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n = select(fd + 1, &readmask, &writemask, (fd_set *)0, &tv);
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n = select(fd + 1, &readmask, &writemask, (fd_set *) 0, &tv);
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if (n < 0) {
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if (errno == EINTR) {
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/* go handle the signal */
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@ -391,10 +390,10 @@ empth_select(int fd, int flags)
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}
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/* strange but we dont get EINTR on select broken by signal */
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empth_status("select failed (%s)", strerror(errno));
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goto done;
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goto done;
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return;
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}
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if (flags == EMPTH_FD_READ && FD_ISSET(fd, &readmask)) {
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empth_status("input ready");
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break;
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@ -404,11 +403,11 @@ empth_select(int fd, int flags)
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break;
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}
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}
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done:
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done:
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pthread_mutex_lock(&mtx_ctxsw);
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empth_restorectx();
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}
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@ -420,7 +419,7 @@ empth_alarm(int sig)
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#ifdef SA_RESTART
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act.sa_flags &= ~SA_RESTART;
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#endif
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sigemptyset (&act.sa_mask);
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sigemptyset(&act.sa_mask);
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act.sa_handler = empth_alarm;
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sigaction(SIGALRM, &act, NULL);
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}
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@ -430,9 +429,9 @@ empth_wakeup(empth_t *a)
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{
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empth_status("waking up thread %s", a->name);
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#ifndef _DECTHREADS_
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#if (!defined __ppc__)
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pthread_kill(a->id, SIGALRM);
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#endif
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#if (!defined __ppc__)
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pthread_kill(a->id, SIGALRM);
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#endif
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#endif
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empth_status("waiting for it to run");
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/* empth_yield(); */
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@ -448,7 +447,7 @@ empth_sleep(long until)
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tv.tv_sec = until - time(NULL);
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tv.tv_usec = 0;
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do {
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select (0, NULL, NULL, NULL, &tv);
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select(0, NULL, NULL, NULL, &tv);
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} while ((tv.tv_sec = until - time(NULL)) > 0);
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empth_status("sleep done. Waiting for lock");
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pthread_mutex_lock(&mtx_ctxsw);
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@ -462,11 +461,11 @@ empth_sem_create(char *name, int cnt)
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empth_sem_t *sm;
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sm = (empth_sem_t *)malloc(sizeof(empth_sem_t));
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if(!sm) {
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if (!sm) {
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logerror("out of memory at %s:%d", __FILE__, __LINE__);
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return NULL;
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}
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strncpy(sm->name, name, sizeof(sm->name)-1);
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strncpy(sm->name, name, sizeof(sm->name) - 1);
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sm->count = cnt;
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#ifdef _DECTHREADS_
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pthread_mutex_init(&sm->mtx_update, pthread_mutexattr_default);
|
||||
|
|
@ -485,22 +484,21 @@ empth_sem_signal(empth_sem_t *sm)
|
|||
{
|
||||
empth_status("signal on semaphore %s:%d", sm->name, sm->count);
|
||||
pthread_mutex_lock(&sm->mtx_update);
|
||||
if(sm->count++ < 0) {
|
||||
if (sm->count++ < 0) {
|
||||
pthread_mutex_unlock(&sm->mtx_update);
|
||||
pthread_mutex_lock(&sm->mtx_sem);
|
||||
pthread_cond_signal(&sm->cnd_sem);
|
||||
pthread_mutex_unlock(&sm->mtx_sem);
|
||||
}
|
||||
else
|
||||
} else
|
||||
pthread_mutex_unlock(&sm->mtx_update);
|
||||
}
|
||||
|
||||
void
|
||||
empth_sem_wait (empth_sem_t *sm)
|
||||
empth_sem_wait(empth_sem_t *sm)
|
||||
{
|
||||
empth_status("wait on semaphore %s:%d", sm->name, sm->count);
|
||||
pthread_mutex_lock(&sm->mtx_update);
|
||||
if(--sm->count < 0) {
|
||||
if (--sm->count < 0) {
|
||||
pthread_mutex_unlock(&sm->mtx_update);
|
||||
empth_status("blocking");
|
||||
pthread_mutex_unlock(&mtx_ctxsw);
|
||||
|
|
@ -510,8 +508,7 @@ empth_sem_wait (empth_sem_t *sm)
|
|||
pthread_mutex_unlock(&sm->mtx_sem);
|
||||
pthread_mutex_lock(&mtx_ctxsw);
|
||||
empth_restorectx();
|
||||
}
|
||||
else
|
||||
} else
|
||||
pthread_mutex_unlock(&sm->mtx_update);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue