aniani/icecast-common
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Code

Feature: Assign default instance if any on new if type is not instance

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This commit is contained in:
Philipp Schafft 2019-09-15 09:03:50 +00:00
parent 4b9211e0cf
commit 0018338afc
3 changed files with 34 additions and 1 deletions
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27
src/libigloo.c
View File

@ -28,6 +28,7 @@ typedef struct igloo_instance_tag igloo_instance_t;
#define igloo_RO_PRIVATETYPES igloo_RO_TYPE(igloo_instance_t)
#include "../include/igloo/ro.h"
#include "../include/igloo/error.h"
#include "private.h"
struct igloo_instance_tag {
@ -35,9 +36,18 @@ struct igloo_instance_tag {
};
static size_t igloo_initialize__refc;
static igloo_ro_t default_instance = igloo_RO_NULL;
static void igloo_initialize__free(igloo_ro_t self)
{
if (igloo_RO_IS_SAME(default_instance, self)) {
/* This is hacky, but needed to avoid free-before-unlock. */
igloo_RO__GETBASE(default_instance)->wrefc--;
default_instance = igloo_RO_NULL;
}
igloo_initialize__refc--;
if (igloo_initialize__refc)
return;
@ -75,5 +85,22 @@ igloo_ro_t igloo_initialize(void)
igloo_initialize__refc++;
if (igloo_RO_IS_NULL(default_instance)) {
if (igloo_ro_weak_ref(ret) == igloo_ERROR_NONE) {
default_instance = (igloo_ro_t)ret;
}
}
return (igloo_ro_t)ret;
}
igloo_ro_t igloo_get_default_instance(void)
{
if (igloo_RO_IS_NULL(default_instance))
return igloo_RO_NULL;
if (igloo_ro_ref(default_instance) != igloo_ERROR_NONE)
return igloo_RO_NULL;
return default_instance;
}

5
src/private.h
View File

@ -38,7 +38,8 @@ void igloo_log_shutdown(void);
/* Instance type internal forwarding */
const igloo_ro_type_t **igloo_instance_type;
#define igloo_IS_INSTANCE(x) (igloo_RO_GET_TYPE((x)) == *igloo_instance_type)
#define igloo_IS_INSTANCE(x) (igloo_RO_GET_TYPE((x)) == *igloo_instance_type)
#define igloo_IS_INSTANCE_TYPE(x) ((x) == *igloo_instance_type)
/* Basic interface */
#define igloo_interface_base(type) \
@ -67,4 +68,6 @@ size_t igloo_private__vsnprintf_Hstrlen(const char *str, int is_alt, int allow_s
void igloo_private__vsnprintf(char *str, size_t size, const char *format, va_list ap);
void igloo_private__snprintf(char *str, size_t size, const char *format, ...);
igloo_ro_t igloo_get_default_instance(void);
#endif

3
src/ro.c
View File

@ -113,6 +113,9 @@ igloo_ro_t igloo_ro_new__raw(const igloo_ro_type_t *type, const char *name,
}
base->instance = instance;
} else {
if (!igloo_IS_INSTANCE_TYPE(type))
base->instance = igloo_get_default_instance();
}
return (igloo_ro_t)base;