1b830beddb
This includes updates to the malloc_hook method and making everything components. This commit was SVN r6852.
85 строки
1.5 KiB
C
85 строки
1.5 KiB
C
/*
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* $Id:$
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* sproc version
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* by Wolfram Gloger 2001, 2004
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*/
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#include <stdio.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#ifndef STACKSIZE
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#define STACKSIZE 32768
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#endif
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struct thread_st {
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char *sp; /* stack pointer, can be 0 */
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void (*func)(struct thread_st* st); /* must be set by user */
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thread_id id;
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int flags;
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struct user_data u;
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};
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static void
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thread_init(void)
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{
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printf("Using sproc() threads.\n");
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}
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static void
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thread_wrapper(void *ptr, size_t stack_len)
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{
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struct thread_st *st = (struct thread_st*)ptr;
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/*printf("begin %p\n", st->sp);*/
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st->func(st);
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/*printf("end %p\n", st->sp);*/
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}
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/* Create a thread. */
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static int
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thread_create(struct thread_st *st)
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{
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st->flags = 0;
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if(!st->sp)
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st->sp = malloc(STACKSIZE);
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if(!st->sp) return -1;
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st->id = sprocsp(thread_wrapper, PR_SALL, st, st->sp+STACKSIZE, STACKSIZE);
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if(st->id < 0) {
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return -1;
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}
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return 0;
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}
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/* Wait for one of several subthreads to finish. */
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static void
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wait_for_thread(struct thread_st st[], int n_thr,
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int (*end_thr)(struct thread_st*))
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{
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int i;
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int id;
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int status = 0;
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id = wait(&status);
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if(status != 0) {
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if(WIFSIGNALED(status))
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printf("thread %id terminated by signal %d\n",
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id, WTERMSIG(status));
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else
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printf("thread %id exited with status %d\n",
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id, WEXITSTATUS(status));
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}
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for(i=0; i<n_thr; i++)
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if(id == st[i].id) {
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if(end_thr)
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end_thr(&st[i]);
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break;
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}
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}
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/*
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* Local variables:
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* tab-width: 4
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* End:
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*/
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