Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 171 insertions, 0 deletions

diff --git a/src/spdk/dpdk/app/test/process.h b/src/spdk/dpdk/app/test/process.h
new file mode 100644
index 000000000..c3b378033
--- /dev/null
+++ b/src/spdk/dpdk/app/test/process.h
@@ -0,0 +1,171 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
+ */
+
+#ifndef _PROCESS_H_
+#define _PROCESS_H_
+
+#include <errno.h>  /* errno */
+#include <limits.h> /* PATH_MAX */
+#include <libgen.h> /* basename et al */
+#include <stdlib.h> /* NULL */
+#include <string.h> /* strerror */
+#include <unistd.h> /* readlink */
+#include <dirent.h>
+#include <sys/wait.h>
+
+#include <rte_string_fns.h> /* strlcpy */
+
+#ifdef RTE_EXEC_ENV_FREEBSD
+#define self "curproc"
+#define exe "file"
+#else
+#define self "self"
+#define exe "exe"
+#endif
+
+#ifdef RTE_LIBRTE_PDUMP
+#ifdef RTE_LIBRTE_RING_PMD
+#include <pthread.h>
+extern void *send_pkts(void *empty);
+extern uint16_t flag_for_send_pkts;
+#endif
+#endif
+
+/*
+ * launches a second copy of the test process using the given argv parameters,
+ * which should include argv[0] as the process name. To identify in the
+ * subprocess the source of the call, the env_value parameter is set in the
+ * environment as $RTE_TEST
+ */
+static inline int
+process_dup(const char *const argv[], int numargs, const char *env_value)
+{
+	int num;
+	char *argv_cpy[numargs + 1];
+	int i, status;
+	char path[32];
+#ifdef RTE_LIBRTE_PDUMP
+#ifdef RTE_LIBRTE_RING_PMD
+	pthread_t thread;
+#endif
+#endif
+
+	pid_t pid = fork();
+	if (pid < 0)
+		return -1;
+	else if (pid == 0) {
+		/* make a copy of the arguments to be passed to exec */
+		for (i = 0; i < numargs; i++)
+			argv_cpy[i] = strdup(argv[i]);
+		argv_cpy[i] = NULL;
+		num = numargs;
+
+#ifdef RTE_EXEC_ENV_LINUX
+		{
+			const char *procdir = "/proc/" self "/fd/";
+			struct dirent *dirent;
+			char *endptr;
+			int fd, fdir;
+			DIR *dir;
+
+			/* close all open file descriptors, check /proc/self/fd
+			 * to only call close on open fds. Exclude fds 0, 1 and
+			 * 2
+			 */
+			dir = opendir(procdir);
+			if (dir == NULL) {
+				rte_panic("Error opening %s: %s\n", procdir,
+						strerror(errno));
+			}
+
+			fdir = dirfd(dir);
+			if (fdir < 0) {
+				status = errno;
+				closedir(dir);
+				rte_panic("Error %d obtaining fd for dir %s: %s\n",
+						fdir, procdir,
+						strerror(status));
+			}
+
+			while ((dirent = readdir(dir)) != NULL) {
+				errno = 0;
+				fd = strtol(dirent->d_name, &endptr, 10);
+				if (errno != 0 || endptr[0] != '\0') {
+					printf("Error converting name fd %d %s:\n",
+						fd, dirent->d_name);
+					continue;
+				}
+
+				if (fd == fdir || fd <= 2)
+					continue;
+
+				close(fd);
+			}
+			closedir(dir);
+		}
+#endif
+		printf("Running binary with argv[]:");
+		for (i = 0; i < num; i++)
+			printf("'%s' ", argv_cpy[i]);
+		printf("\n");
+
+		/* set the environment variable */
+		if (setenv(RECURSIVE_ENV_VAR, env_value, 1) != 0)
+			rte_panic("Cannot export environment variable\n");
+
+		strlcpy(path, "/proc/" self "/" exe, sizeof(path));
+		if (execv(path, argv_cpy) < 0) {
+			if (errno == ENOENT) {
+				printf("Could not find '%s', is procfs mounted?\n",
+						path);
+			}
+			rte_panic("Cannot exec: %s\n", strerror(errno));
+		}
+	}
+	/* parent process does a wait */
+#ifdef RTE_LIBRTE_PDUMP
+#ifdef RTE_LIBRTE_RING_PMD
+	if ((strcmp(env_value, "run_pdump_server_tests") == 0))
+		pthread_create(&thread, NULL, &send_pkts, NULL);
+#endif
+#endif
+
+	while (wait(&status) != pid)
+		;
+#ifdef RTE_LIBRTE_PDUMP
+#ifdef RTE_LIBRTE_RING_PMD
+	if ((strcmp(env_value, "run_pdump_server_tests") == 0)) {
+		flag_for_send_pkts = 0;
+		pthread_join(thread, NULL);
+	}
+#endif
+#endif
+	return status;
+}
+
+/* FreeBSD doesn't support file prefixes, so force compile failures for any
+ * tests attempting to use this function on FreeBSD.
+ */
+#ifdef RTE_EXEC_ENV_LINUX
+static char *
+get_current_prefix(char *prefix, int size)
+{
+	char path[PATH_MAX] = {0};
+	char buf[PATH_MAX] = {0};
+
+	/* get file for config (fd is always 3) */
+	snprintf(path, sizeof(path), "/proc/self/fd/%d", 3);
+
+	/* return NULL on error */
+	if (readlink(path, buf, sizeof(buf)) == -1)
+		return NULL;
+
+	/* get the prefix */
+	snprintf(prefix, size, "%s", basename(dirname(buf)));
+
+	return prefix;
+}
+#endif
+
+#endif /* _PROCESS_H_ */