141 строка
3.7 KiB
C
141 строка
3.7 KiB
C
/*
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* Copyright (c) 2009-2018 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "opal/runtime/opal.h"
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#include "opal/mca/dl/base/base.h"
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#if !OPAL_HAVE_DL_SUPPORT
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int main(int argc, char *argv[])
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{
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/* If OPAL wasn't built with libltdl support, then skip this test */
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fprintf(stderr, "OPAL was not built with libltdl support; skipping\n");
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return 77;
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}
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#else /* OPAL_HAVE_DL_SUPPORT */
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static int try_open(const char *filename)
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{
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char *err_msg;
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opal_dl_handle_t *handle;
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int ret;
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ret = opal_dl_open(filename, true, true, &handle, &err_msg);
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if (OPAL_SUCCESS == ret) {
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opal_dl_close(handle);
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printf("File opened with private namespace, all passed\n");
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return 0;
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}
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printf("Failed to open with private namespace: %s\n", err_msg);
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printf("Retrying with global namespace\n");
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ret = opal_dl_open(filename, true, false, &handle, &err_msg);
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if (OPAL_SUCCESS == ret) {
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opal_dl_close(handle);
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printf("File opened with global namespace\n");
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return 0;
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}
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fprintf(stderr, "File failed to open with global namespace: %s\n",
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err_msg);
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return 2;
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}
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static int do_test(void)
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{
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FILE *fp;
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char filename[] = "./libompi_dbg_msgq";
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char full_filename[] = "./libompi_dbg_msgq.la";
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char line[1024];
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int happy;
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/* Double check that the .la file is there that we expect; if it's
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not, skip this test. */
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fp = fopen(full_filename, "r");
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if (NULL == fp) {
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fprintf(stderr,
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"File %s.la doesn't seem to exist; skipping this test\n",
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full_filename);
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exit(77);
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}
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/* We know the .la file is there, so read it, looking for the
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dlopen value. If the dlopen value is '' (i.e., empty), then
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there's nothing to dlopen (i.e., OMPI was built with
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--enable-static --disable-shared, so return 77 to skip this
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test. This is horrible, but I can't think of a better way to
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check it (since there is no good way to #define whether we have
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built statically or not...). */
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happy = 0;
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while (1) {
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if (0 == fgets(line, sizeof(line) - 1, fp)) {
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break;
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}
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if (0 == strncmp(line, "dlname=", 7)) {
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if (0 == strncmp(line + 7, "''", 2)) {
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happy = 0;
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} else {
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happy = 1;
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}
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break;
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}
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}
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fclose(fp);
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if (!happy) {
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fprintf(stderr, "No test file to dlopen (perhaps --enable-static?); skipping\n");
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exit(77);
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}
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char cwd[4096];
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getcwd(cwd, sizeof(cwd) - 1);
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cwd[sizeof(cwd) - 1] = '\0';
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printf("Running in CWD: %s\n", cwd);
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printf("Trying to open file with private namespace: %s\n", filename);
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/* If that works, great */
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if (0 == try_open(filename)) {
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return 0;
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}
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/* If we're using libltdl, it will find the .la file and may
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discover that it needs to open the actual file in the .libs
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directory. If we're not using libltdl, then we won't know
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about the magic .la file / .libs directory. Hueristic: if we
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get here, manually prefix the filename with .libs/ and try
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again. */
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char *rel_filename;
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asprintf(&rel_filename, ".libs/%s", filename);
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if (NULL == rel_filename) {
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return 1;
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}
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int rc = try_open(rel_filename);
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free(rel_filename);
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return rc;
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}
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int main(int argc, char *argv[])
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{
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opal_init(&argc, &argv);
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int ret = do_test();
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opal_finalize();
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return ret;
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}
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#endif /* OPAL_HAVE_DL_SUPPORT */
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