6f41fe75e2
The function rte_snprintf serves no useful purpose. It is the same as snprintf() for all valid inputs. Deprecate it and replace all uses in current code. Leave the tests for the deprecated function in place. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _PROCESS_H_
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#define _PROCESS_H_
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#ifndef RTE_EXEC_ENV_BAREMETAL
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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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/*
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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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#ifdef RTE_LIBRTE_XEN_DOM0
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char *argv_cpy[numargs + 2];
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#else
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char *argv_cpy[numargs + 1];
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#endif
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int i, fd, status;
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char path[32];
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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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#ifdef RTE_LIBRTE_XEN_DOM0
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argv_cpy[i] = strdup("--xen-dom0");
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argv_cpy[i + 1] = NULL;
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num = numargs + 1;
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#else
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argv_cpy[i] = NULL;
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num = numargs;
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#endif
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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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while (wait(&status) != pid)
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;
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return status;
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}
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#endif /* not baremetal */
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#endif /* _PROCESS_H_ */
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