test program for trylock functions

test_try.c (text/x-csrc), 2.62 KB, created by Chris Darroch on 2006-02-22 22:39:09 UTC

(hide)

Description: test program for trylock functions

Filename:

MIME Type:

Creator: Chris Darroch

Created: 2006-02-22 22:39:09 UTC

Size: 2.62 KB

patch

obsolete

>#include <stdio.h> >#include <strings.h> >#include <apr.h> >#include <apr_pools.h> >#include <apr_proc_mutex.h> > >int main(int argc, const char * const *argv) >{ > apr_status_t s; > apr_pool_t *p; > apr_proc_mutex_t *l; > apr_lockmech_e mech = APR_LOCK_DEFAULT; > char buf[100]; > int pid; > int i; > > apr_app_initialize(&argc, &argv, NULL); > atexit(apr_terminate); > > apr_pool_create(&p, NULL); > > if(argc == 2) > { > if(strcmp("flock", argv[1]) == 0) > mech = APR_LOCK_FLOCK; > else if(strcmp("fcntl", argv[1]) == 0) > mech = APR_LOCK_FCNTL; > else if(strcmp("posix", argv[1]) == 0) > mech = APR_LOCK_POSIXSEM; > else if(strcmp("sysv", argv[1]) == 0) > mech = APR_LOCK_SYSVSEM; > else if(strcmp("pthread", argv[1]) == 0) > mech = APR_LOCK_PROC_PTHREAD; > } > > s = apr_proc_mutex_create(&l, "/tmp/test_hang", mech, p); > if(s) > { > fprintf(stderr, "unable to create lock: %d, %s\n", > s, apr_strerror(s, buf, 100)); > } > > printf("lock name: %s\n", apr_proc_mutex_name(l)); > > if((pid = fork()) == -1) > { > fprintf(stderr, "unable to fork\n"); > exit(1); > } > > if(pid) > { > i = 0; > s = APR_EBUSY; > while(s == APR_EBUSY) > { > if(++i == 2) > printf("parent still waiting\n"); > sleep(1); > s = apr_proc_mutex_trylock(l); > } > } > else > { > apr_initialize(); > > s = apr_proc_mutex_child_init(&l, "/tmp/test_hang", p); > if(s) > { > fprintf(stderr, "unable to init lock in child: %d, %s\n", > s, apr_strerror(s, buf, 100)); > } > > s = apr_proc_mutex_trylock(l); > } > > if(s) > { > fprintf(stderr, "unable to acquire lock (%s): %d, %s\n", > (pid ? "parent" : "child"), s, apr_strerror(s, buf, 100)); > goto do_exit; > } > > if(pid) > printf("parent acquired lock\n"); > else > { > printf("child %d acquired lock ... now kill me!\n", getpid()); > > for(i = 0; i < 10; ++i) > { > printf("%d\n", i); > sleep(1); > } > } > > s = apr_proc_mutex_unlock(l); > if(s) > { > fprintf(stderr, "unable to release lock (%s): %d, %s\n", > (pid ? "parent" : "child"), s, apr_strerror(s, buf, 100)); > } > >do_exit: > if(!pid) > { > printf("child exiting\n"); > exit(0); > } > > s = apr_proc_mutex_destroy(l); > if(s) > { > fprintf(stderr, "unable to destroy lock: %d, %s\n", > s, apr_strerror(s, buf, 100)); > } > > printf("parent exiting\n"); > exit(0); >} > View Attachment As Raw

This is ASF Bugzilla: the Apache Software Foundation bug system. In case of problems with the functioning of ASF Bugzilla, please contact bugzilla-admin@apache.org. Please Note: this e-mail address is only for reporting problems with ASF Bugzilla. Mail about any other subject will be silently ignored.

• • Home
  • | New
  • | Browse
  • | Search
  • |
    [?]
  • | Reports
  • | Help
  • | New Account
  • | Log In
    Remember [x]
  • | Forgot Password
    Login: [x]