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path: root/src/backend/port/qnx4/tstsem.c
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Diffstat (limited to 'src/backend/port/qnx4/tstsem.c')
-rw-r--r--src/backend/port/qnx4/tstsem.c298
1 files changed, 169 insertions, 129 deletions
diff --git a/src/backend/port/qnx4/tstsem.c b/src/backend/port/qnx4/tstsem.c
index a604d950178..dc697ceaed5 100644
--- a/src/backend/port/qnx4/tstsem.c
+++ b/src/backend/port/qnx4/tstsem.c
@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/port/qnx4/Attic/tstsem.c,v 1.2 2000/03/14 18:12:06 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/port/qnx4/Attic/tstsem.c,v 1.3 2000/04/12 17:15:30 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -26,137 +26,177 @@
#define SEMMAX 16
#define OPSMAX 1
-static int semid;
+static int semid;
-static void sig_handler( int sig_no )
+static void
+sig_handler(int sig_no)
{
- union semun arg;
- int i = semctl( semid, 0, GETNCNT, arg );
- if( i == -1 ) perror( "semctl" );
- else printf( "semval = %d\n", i );
+ union semun arg;
+ int i = semctl(semid, 0, GETNCNT, arg);
+
+ if (i == -1)
+ perror("semctl");
+ else
+ printf("semval = %d\n", i);
}
-int main( int argc, char **argv )
+int
+main(int argc, char **argv)
{
- int c, errflg = 0;
- char s[80];
- key_t key = IPC_PRIVATE;
- int nsems = SEMMAX;
- int semflg = 0;
- int unlink = 0;
- int i;
- struct sembuf sops[OPSMAX];
- u_short array[SEMMAX];
- union semun arg;
-
- optarg = NULL;
- while( !errflg && ( c = getopt( argc, argv, "k:n:cxu" ) ) != -1 ) {
- switch( c ) {
- case 'k': key = atoi( optarg ); break;
- case 'n': nsems = atoi( optarg ); break;
- case 'c': semflg |= IPC_CREAT; break;
- case 'x': semflg |= IPC_EXCL; break;
- case 'u': unlink = 1; break;
- default: errflg++;
- }
- }
- if( errflg ) {
- printf( "usage: tstsem [-k key] [-n nsems] [-cxu]\n" );
- exit( 1 );
- }
-
- if( unlink ) {
- i = shm_unlink( "SysV_Sem_Info" );
- if( i == -1 ) perror( "shm_unlink" );
- exit( i );
- }
-
- semid = semget( key, nsems, semflg );
- if( semid == -1 ) {
- perror( "semget" );
- exit( semid );
- }
-
- /* test signal interrupts */
- signal( SIGTERM, sig_handler );
-
- do {
- printf( "(-)sem_op, (+)sem_op, (G)ETVAL, (S)ETVAL, GET(P)ID, GET(A)LL, SETA(L)L, GET(N)CNT, GET(Z)CNT, e(x)it: " );
- scanf( "%s", s );
- switch( s[0] ) {
- case '-':
- case '+':
- sops[0].sem_num = 0;
- sops[0].sem_op = atoi( s );
- if( sops[0].sem_op == 0 ) sops[0].sem_op = s[0] == '+' ? +1 : -1;
- sops[0].sem_flg = 0;
- if( semop( semid, sops, 1 ) == -1 ) perror( "semop" );
- break;
-
- case 'G':
- case 'g':
- i = semctl( semid, 0, GETVAL, arg );
- if( i == -1 ) perror( "semctl" );
- else printf( "semval = %d\n", i );
- break;
-
- case 'S':
- case 's':
- printf( "semval = " );
- scanf( "%d", &arg.val );
- if( semctl( semid, 0, SETVAL, arg ) == -1 ) perror( "semctl" );
- break;
-
- case 'P':
- case 'p':
- i = semctl( semid, 0, GETPID, arg );
- if( i == -1 ) perror( "semctl" );
- else printf( "PID = %d\n", i );
- break;
-
- case 'A':
- case 'a':
- arg.array = array;
- i = semctl( semid, 0, GETALL, arg );
- if( i == -1 ) perror( "semctl" );
- else {
- for( i = 0; i < nsems; i++ ) {
- printf( "semval[%d] = %hu\n", i, arg.array[i] );
- }
- }
- break;
-
- case 'L':
- case 'l':
- arg.array = array;
- for( i = 0; i < nsems; i++ ) {
- printf( "semval[%d] = ", i );
- scanf( "%hu", &arg.array[i] );
- }
- if( semctl( semid, 0, SETALL, arg ) == -1 )perror( "semctl" );
- break;
-
- case 'N':
- case 'n':
- i = semctl( semid, 0, GETNCNT, arg );
- if( i == -1 ) perror( "semctl" );
- else printf( "semval = %d\n", i );
- break;
-
- case 'Z':
- case 'z':
- i = semctl( semid, 0, GETZCNT, arg );
- if( i == -1 ) perror( "semctl" );
- else printf( "semval = %d\n", i );
- break;
- }
- }
- while( s[0] != 'x' );
-
- if( semctl( semid, 0, IPC_RMID, arg ) == -1 ) {
- perror( "semctl" );
- exit( -1 );
- }
-
- exit( 0 );
+ int c,
+ errflg = 0;
+ char s[80];
+ key_t key = IPC_PRIVATE;
+ int nsems = SEMMAX;
+ int semflg = 0;
+ int unlink = 0;
+ int i;
+ struct sembuf sops[OPSMAX];
+ u_short array[SEMMAX];
+ union semun arg;
+
+ optarg = NULL;
+ while (!errflg && (c = getopt(argc, argv, "k:n:cxu")) != -1)
+ {
+ switch (c)
+ {
+ case 'k':
+ key = atoi(optarg);
+ break;
+ case 'n':
+ nsems = atoi(optarg);
+ break;
+ case 'c':
+ semflg |= IPC_CREAT;
+ break;
+ case 'x':
+ semflg |= IPC_EXCL;
+ break;
+ case 'u':
+ unlink = 1;
+ break;
+ default:
+ errflg++;
+ }
+ }
+ if (errflg)
+ {
+ printf("usage: tstsem [-k key] [-n nsems] [-cxu]\n");
+ exit(1);
+ }
+
+ if (unlink)
+ {
+ i = shm_unlink("SysV_Sem_Info");
+ if (i == -1)
+ perror("shm_unlink");
+ exit(i);
+ }
+
+ semid = semget(key, nsems, semflg);
+ if (semid == -1)
+ {
+ perror("semget");
+ exit(semid);
+ }
+
+ /* test signal interrupts */
+ signal(SIGTERM, sig_handler);
+
+ do
+ {
+ printf("(-)sem_op, (+)sem_op, (G)ETVAL, (S)ETVAL, GET(P)ID, GET(A)LL, SETA(L)L, GET(N)CNT, GET(Z)CNT, e(x)it: ");
+ scanf("%s", s);
+ switch (s[0])
+ {
+ case '-':
+ case '+':
+ sops[0].sem_num = 0;
+ sops[0].sem_op = atoi(s);
+ if (sops[0].sem_op == 0)
+ sops[0].sem_op = s[0] == '+' ? +1 : -1;
+ sops[0].sem_flg = 0;
+ if (semop(semid, sops, 1) == -1)
+ perror("semop");
+ break;
+
+ case 'G':
+ case 'g':
+ i = semctl(semid, 0, GETVAL, arg);
+ if (i == -1)
+ perror("semctl");
+ else
+ printf("semval = %d\n", i);
+ break;
+
+ case 'S':
+ case 's':
+ printf("semval = ");
+ scanf("%d", &arg.val);
+ if (semctl(semid, 0, SETVAL, arg) == -1)
+ perror("semctl");
+ break;
+
+ case 'P':
+ case 'p':
+ i = semctl(semid, 0, GETPID, arg);
+ if (i == -1)
+ perror("semctl");
+ else
+ printf("PID = %d\n", i);
+ break;
+
+ case 'A':
+ case 'a':
+ arg.array = array;
+ i = semctl(semid, 0, GETALL, arg);
+ if (i == -1)
+ perror("semctl");
+ else
+ {
+ for (i = 0; i < nsems; i++)
+ printf("semval[%d] = %hu\n", i, arg.array[i]);
+ }
+ break;
+
+ case 'L':
+ case 'l':
+ arg.array = array;
+ for (i = 0; i < nsems; i++)
+ {
+ printf("semval[%d] = ", i);
+ scanf("%hu", &arg.array[i]);
+ }
+ if (semctl(semid, 0, SETALL, arg) == -1)
+ perror("semctl");
+ break;
+
+ case 'N':
+ case 'n':
+ i = semctl(semid, 0, GETNCNT, arg);
+ if (i == -1)
+ perror("semctl");
+ else
+ printf("semval = %d\n", i);
+ break;
+
+ case 'Z':
+ case 'z':
+ i = semctl(semid, 0, GETZCNT, arg);
+ if (i == -1)
+ perror("semctl");
+ else
+ printf("semval = %d\n", i);
+ break;
+ }
+ }
+ while (s[0] != 'x');
+
+ if (semctl(semid, 0, IPC_RMID, arg) == -1)
+ {
+ perror("semctl");
+ exit(-1);
+ }
+
+ exit(0);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-31 16:34:14 +0000