a9de470cc7
Since all other apps have been moved to the "app" folder, the autotest app remains alone in the test folder. Rather than having an entire top-level folder for this, we can move it back to where it all started in early versions of DPDK - the "app/" folder. This move has a couple of advantages: * This reduces clutter at the top level of the project, due to one less folder. * It eliminates the separate build task necessary for building the autotests using make "make test-build" which means that developers are less likely to miss something in their own compilation tests * It re-aligns the final location of the test binary in the app folder when building with make with it's location in the source tree. For meson builds, the autotest app is different from the other apps in that it needs a series of different test cases defined for it for use by "meson test". Therefore, it does not get built as part of the main loop in the app folder, but gets built separately at the end. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
107 lines
2.7 KiB
C
107 lines
2.7 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation
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*/
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#ifndef _PROCESS_H_
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#define _PROCESS_H_
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#include <limits.h> /* PATH_MAX */
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#include <libgen.h> /* basename et al */
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#include <stdlib.h> /* NULL */
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#include <unistd.h> /* readlink */
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#include <sys/wait.h>
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#ifdef RTE_EXEC_ENV_BSDAPP
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#define self "curproc"
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#define exe "file"
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#else
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#define self "self"
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#define exe "exe"
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#endif
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#include <pthread.h>
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extern void *send_pkts(void *empty);
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extern uint16_t flag_for_send_pkts;
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/*
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* launches a second copy of the test process using the given argv parameters,
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* which should include argv[0] as the process name. To identify in the
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* subprocess the source of the call, the env_value parameter is set in the
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* environment as $RTE_TEST
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*/
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static inline int
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process_dup(const char *const argv[], int numargs, const char *env_value)
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{
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int num;
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char *argv_cpy[numargs + 1];
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int i, fd, status;
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char path[32];
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pthread_t thread;
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pid_t pid = fork();
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if (pid < 0)
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return -1;
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else if (pid == 0) {
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/* make a copy of the arguments to be passed to exec */
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for (i = 0; i < numargs; i++)
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argv_cpy[i] = strdup(argv[i]);
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argv_cpy[i] = NULL;
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num = numargs;
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/* close all open file descriptors, check /proc/self/fd to only
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* call close on open fds. Exclude fds 0, 1 and 2*/
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for (fd = getdtablesize(); fd > 2; fd-- ) {
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snprintf(path, sizeof(path), "/proc/" exe "/fd/%d", fd);
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if (access(path, F_OK) == 0)
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close(fd);
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}
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printf("Running binary with argv[]:");
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for (i = 0; i < num; i++)
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printf("'%s' ", argv_cpy[i]);
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printf("\n");
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/* set the environment variable */
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if (setenv(RECURSIVE_ENV_VAR, env_value, 1) != 0)
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rte_panic("Cannot export environment variable\n");
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if (execv("/proc/" self "/" exe, argv_cpy) < 0)
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rte_panic("Cannot exec\n");
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}
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/* parent process does a wait */
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if ((strcmp(env_value, "run_pdump_server_tests") == 0))
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pthread_create(&thread, NULL, &send_pkts, NULL);
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while (wait(&status) != pid)
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;
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if ((strcmp(env_value, "run_pdump_server_tests") == 0)) {
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flag_for_send_pkts = 0;
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pthread_join(thread, NULL);
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}
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return status;
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}
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/* FreeBSD doesn't support file prefixes, so force compile failures for any
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* tests attempting to use this function on FreeBSD.
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*/
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#ifdef RTE_EXEC_ENV_LINUXAPP
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static char *
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get_current_prefix(char *prefix, int size)
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{
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char path[PATH_MAX] = {0};
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char buf[PATH_MAX] = {0};
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/* get file for config (fd is always 3) */
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snprintf(path, sizeof(path), "/proc/self/fd/%d", 3);
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/* return NULL on error */
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if (readlink(path, buf, sizeof(buf)) == -1)
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return NULL;
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/* get the prefix */
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snprintf(prefix, size, "%s", basename(dirname(buf)));
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return prefix;
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}
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#endif
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#endif /* _PROCESS_H_ */
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