mirror of https://gerrit.osmocom.org/libosmocore
85 lines
2.0 KiB
C
85 lines
2.0 KiB
C
#include <stdint.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <sys/eventfd.h>
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#include <osmocom/core/logging.h>
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#include <osmocom/core/application.h>
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#include <osmocom/core/utils.h>
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#include <osmocom/core/select.h>
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#include <osmocom/core/talloc.h>
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static struct osmo_fd g_evfd;
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static void *alloc_res_select;
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static void *alloc_res_global;
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static int destructor_called;
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static int talloc_destructor(void *ptr)
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{
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printf("destructor was called automatically\n");
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/* ensure the destructor is only called for the chunk allocated from the
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* volatile select context */
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OSMO_ASSERT(ptr == alloc_res_select);
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destructor_called += 1;
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return 0;
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}
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static int evfd_cb(struct osmo_fd *ofd, unsigned int what)
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{
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uint64_t rval;
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int rc;
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rc = read(ofd->fd, &rval, sizeof(rval));
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OSMO_ASSERT(rc == sizeof(rval));
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printf("allocating from select context\n");
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alloc_res_select = talloc_named_const(OTC_SELECT, 23, "alloc_select");
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OSMO_ASSERT(alloc_res_select);
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talloc_set_destructor(alloc_res_select, talloc_destructor);
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printf("allocating from global context\n");
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alloc_res_global = talloc_named_const(OTC_GLOBAL, 42, "alloc_global");
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OSMO_ASSERT(alloc_res_global);
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talloc_set_destructor(alloc_res_global, talloc_destructor);
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return 0;
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}
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const struct log_info_cat default_categories[] = {
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};
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static struct log_info info = {
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.cat = default_categories,
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.num_cat = ARRAY_SIZE(default_categories),
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};
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int main(int argc, char **argv)
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{
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int rc;
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osmo_init_logging2(OTC_GLOBAL, &info);
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rc = eventfd(0, 0);
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OSMO_ASSERT(rc >= 0);
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osmo_fd_setup(&g_evfd, rc, OSMO_FD_READ, evfd_cb, NULL, 0);
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osmo_fd_register(&g_evfd);
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/* make sure the select loop will immediately call the callback */
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uint64_t val = 1;
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rc = write(g_evfd.fd, &val, sizeof(val));
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OSMO_ASSERT(rc == sizeof(val));
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/* enter osmo_select_main_ctx() once */
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printf("entering osmo_select_main\n");
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osmo_select_main_ctx(1);
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/* the allocation must have happened, and the destructor must have been called
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* automatically exactly once */
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OSMO_ASSERT(destructor_called == 1);
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exit(0);
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}
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