68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/* $NetBSD: name.c,v 1.2 2003/02/27 15:18:41 hannken Exp $ */
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#include <assert.h>
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#include <err.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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void *threadfunc(void *arg);
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#define NAME_TOO_LONG "12345678901234567890123456789012" /* 32 chars */
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#define NAME_JUST_RIGHT "1234567890123456789012345678901" /* 31 chars */
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#define CONST_NAME "xyzzy"
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char non_const_name[] = CONST_NAME;
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int
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main(int argc, char *argv[])
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{
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pthread_t thr, self = pthread_self();
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pthread_attr_t attr;
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char retname[32];
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int ret;
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pthread_attr_init(&attr);
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assert(0 == pthread_attr_getname_np(&attr, retname, sizeof(retname),
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NULL));
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assert(retname[0] == '\0');
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assert(EINVAL == pthread_attr_setname_np(&attr, NAME_TOO_LONG, NULL));
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assert(0 == pthread_attr_setname_np(&attr, "%s", NAME_JUST_RIGHT));
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strcpy(retname, "foo");
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assert(0 == pthread_getname_np(self, retname, sizeof(retname)));
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assert(retname[0] == '\0');
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ret = pthread_create(&thr, &attr, threadfunc, NULL);
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if (ret != 0)
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err(1, "pthread_create");
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ret = pthread_join(thr, NULL);
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if (ret != 0)
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err(1, "pthread_join");
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assert(ESRCH == pthread_getname_np(thr, retname, sizeof(retname)));
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return 0;
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}
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void *
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threadfunc(void *arg)
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{
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pthread_t self = pthread_self();
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char retname[32];
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assert(0 == pthread_getname_np(self, retname, sizeof(retname)));
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assert(0 == strcmp(retname, NAME_JUST_RIGHT));
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assert(0 == pthread_setname_np(self, non_const_name, NULL));
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memset(non_const_name, 0, sizeof(non_const_name));
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assert(0 == pthread_getname_np(self, retname, sizeof(retname)));
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assert(0 == strcmp(retname, CONST_NAME));
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return NULL;
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}
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