diff options
Diffstat (limited to 'src/backend/port/qnx4/tstsem.c')
| -rw-r--r-- | src/backend/port/qnx4/tstsem.c | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/src/backend/port/qnx4/tstsem.c b/src/backend/port/qnx4/tstsem.c index fee5d867740..a604d950178 100644 --- a/src/backend/port/qnx4/tstsem.c +++ b/src/backend/port/qnx4/tstsem.c @@ -7,12 +7,13 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/port/qnx4/Attic/tstsem.c,v 1.1 1999/12/16 16:52:52 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/port/qnx4/Attic/tstsem.c,v 1.2 2000/03/14 18:12:06 momjian Exp $ * *------------------------------------------------------------------------- */ +#include <signal.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> @@ -22,9 +23,18 @@ #include <sys/sem.h> -#define SEMMAX 1 -#define OPSMAX 1 +#define SEMMAX 16 +#define OPSMAX 1 +static int semid; + +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 ); +} int main( int argc, char **argv ) { @@ -34,7 +44,7 @@ int main( int argc, char **argv ) int nsems = SEMMAX; int semflg = 0; int unlink = 0; - int semid, i; + int i; struct sembuf sops[OPSMAX]; u_short array[SEMMAX]; union semun arg; @@ -67,8 +77,11 @@ int main( int argc, char **argv ) 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, e(x)it: " ); + 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 '-': @@ -122,6 +135,20 @@ int main( int argc, char **argv ) } 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' ); |