tools/testing/selftests/proc/proc-tid0.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/proc/proc-tid0.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/proc/proc-tid0.c
Extension
.c
Size
1766 bytes
Lines
82
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

while (1) {
			pthread_t pth;
			pthread_create(&pth, NULL, f, NULL);
			pthread_join(pth, NULL);
		}
	} else if (pid > 0) {
		/* parent */
		atexit(atexit_hook);

		char buf[64];
		snprintf(buf, sizeof(buf), "/proc/%u/task", pid);

		signal(SIGALRM, sigalrm);
		alarm(1);

		while (1) {
			DIR *d = opendir(buf);
			struct dirent *de;
			while ((de = readdir(d))) {
				if (strcmp(de->d_name, "0") == 0) {
					exit(1);
				}
			}
			closedir(d);
		}

		return 0;
	} else {
		perror("fork");
		return 1;
	}
}

Annotation

Implementation Notes