isolation_main.c

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/*-------------------------------------------------------------------------
 *
 * isolation_main --- pg_regress test launcher for isolation tests
 *
 * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/test/isolation/isolation_main.c
 *
 *-------------------------------------------------------------------------
 */

#include "pg_regress.h"

/*
 * start an isolation tester process for specified file (including
 * redirection), and return process ID
 */
static PID_TYPE
isolation_start_test(const char *testname,
                     _stringlist ** resultfiles,
                     _stringlist ** expectfiles,
                     _stringlist ** tags)
{
    PID_TYPE    pid;
    char        infile[MAXPGPATH];
    char        outfile[MAXPGPATH];
    char        expectfile[MAXPGPATH];
    char        psql_cmd[MAXPGPATH * 3];
    size_t      offset = 0;

    /*
     * Look for files in the output dir first, consistent with a vpath search.
     * This is mainly to create more reasonable error messages if the file is
     * not found.  It also allows local test overrides when running pg_regress
     * outside of the source tree.
     */
    snprintf(infile, sizeof(infile), "%s/specs/%s.spec",
             outputdir, testname);
    if (!file_exists(infile))
        snprintf(infile, sizeof(infile), "%s/specs/%s.spec",
                 inputdir, testname);

    snprintf(outfile, sizeof(outfile), "%s/results/%s.out",
             outputdir, testname);

    snprintf(expectfile, sizeof(expectfile), "%s/expected/%s.out",
             outputdir, testname);
    if (!file_exists(expectfile))
        snprintf(expectfile, sizeof(expectfile), "%s/expected/%s.out",
                 inputdir, testname);

    add_stringlist_item(resultfiles, outfile);
    add_stringlist_item(expectfiles, expectfile);

    if (launcher)
        offset += snprintf(psql_cmd + offset, sizeof(psql_cmd) - offset,
                           "%s ", launcher);

    snprintf(psql_cmd + offset, sizeof(psql_cmd) - offset,
             SYSTEMQUOTE "\"./isolationtester\" \"dbname=%s\" < \"%s\" > \"%s\" 2>&1" SYSTEMQUOTE,
             dblist->str,
             infile,
             outfile);

    pid = spawn_process(psql_cmd);

    if (pid == INVALID_PID)
    {
        fprintf(stderr, _("could not start process for test %s\n"),
                testname);
        exit(2);
    }

    return pid;
}

static void
isolation_init(void)
{
    /* set default regression database name */
    add_stringlist_item(&dblist, "isolationtest");
}

int
main(int argc, char *argv[])
{
    return regression_main(argc, argv, isolation_init, isolation_start_test);
}