thread-descriptor.c

Go to the documentation of this file.

/* Processed by ecpg (regression mode) */
/* These include files are added by the preprocessor */
#include <ecpglib.h>
#include <ecpgerrno.h>
#include <sqlca.h>
/* End of automatic include section */
#define ECPGdebug(X,Y) ECPGdebug((X)+100,(Y))

#line 1 "descriptor.pgc"
#ifdef ENABLE_THREAD_SAFETY
#ifdef WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <process.h>
#else
#include <pthread.h>
#endif
#endif
#include <stdio.h>

#define THREADS     16
#define REPEATS     50000


#line 1 "sqlca.h"
#ifndef POSTGRES_SQLCA_H
#define POSTGRES_SQLCA_H

#ifndef PGDLLIMPORT
#if  defined(WIN32) || defined(__CYGWIN__)
#define PGDLLIMPORT __declspec (dllimport)
#else
#define PGDLLIMPORT
#endif   /* __CYGWIN__ */
#endif   /* PGDLLIMPORT */

#define SQLERRMC_LEN    150

#ifdef __cplusplus
extern      "C"
{
#endif

struct sqlca_t
{
    char        sqlcaid[8];
    long        sqlabc;
    long        sqlcode;
    struct
    {
        int         sqlerrml;
        char        sqlerrmc[SQLERRMC_LEN];
    }           sqlerrm;
    char        sqlerrp[8];
    long        sqlerrd[6];
    /* Element 0: empty                     */
    /* 1: OID of processed tuple if applicable          */
    /* 2: number of rows processed              */
    /* after an INSERT, UPDATE or               */
    /* DELETE statement                 */
    /* 3: empty                     */
    /* 4: empty                     */
    /* 5: empty                     */
    char        sqlwarn[8];
    /* Element 0: set to 'W' if at least one other is 'W'   */
    /* 1: if 'W' at least one character string      */
    /* value was truncated when it was          */
    /* stored into a host variable.             */

    /*
     * 2: if 'W' a (hopefully) non-fatal notice occurred
     */ /* 3: empty */
    /* 4: empty                     */
    /* 5: empty                     */
    /* 6: empty                     */
    /* 7: empty                     */

    char        sqlstate[5];
};

struct sqlca_t *ECPGget_sqlca(void);

#ifndef POSTGRES_ECPG_INTERNAL
#define sqlca (*ECPGget_sqlca())
#endif

#ifdef __cplusplus
}
#endif

#endif

#line 15 "descriptor.pgc"

/* exec sql whenever sqlerror  sqlprint ; */
#line 16 "descriptor.pgc"

/* exec sql whenever not found  sqlprint ; */
#line 17 "descriptor.pgc"


#if defined(ENABLE_THREAD_SAFETY) && defined(WIN32)
static unsigned __stdcall fn(void* arg)
#else
static void* fn(void* arg)
#endif
{
    int i;

    for (i = 1; i <= REPEATS; ++i)
    {
        ECPGallocate_desc(__LINE__, "mydesc");
#line 29 "descriptor.pgc"

if (sqlca.sqlcode < 0) sqlprint();
#line 29 "descriptor.pgc"

        ECPGdeallocate_desc(__LINE__, "mydesc");
#line 30 "descriptor.pgc"

if (sqlca.sqlcode < 0) sqlprint();
#line 30 "descriptor.pgc"

    }

    return 0;
}

int main ()
{
#ifdef ENABLE_THREAD_SAFETY
    int i;
#ifdef WIN32
    HANDLE threads[THREADS];
#else
    pthread_t threads[THREADS];
#endif

#ifdef WIN32
    for (i = 0; i < THREADS; ++i)
    {
        unsigned id;
        threads[i] = (HANDLE)_beginthreadex(NULL, 0, fn, NULL, 0, &id);
    }

    WaitForMultipleObjects(THREADS, threads, TRUE, INFINITE);
    for (i = 0; i < THREADS; ++i)
        CloseHandle(threads[i]);
#else
    for (i = 0; i < THREADS; ++i)
        pthread_create(&threads[i], NULL, fn, NULL);
    for (i = 0; i < THREADS; ++i)
        pthread_join(threads[i], NULL);
#endif
#else
    fn(NULL);
#endif

    return 0;
}