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aded a field to hodl the total number of semaphores in SemaphoreGroup

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changed await_semaphore_group() to return failure if no member semaphore exists
This commit is contained in:
hyunghwan.chung
2018-04-15 16:24:31 +00:00
parent 0d40016fa1
commit a5328db569
4 changed files with 57 additions and 33 deletions
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7
moo/lib/moo.h
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@ -757,7 +757,7 @@ typedef struct moo_process_t* moo_oop_process_t;
typedef struct moo_semaphore_t moo_semaphore_t;
typedef struct moo_semaphore_t* moo_oop_semaphore_t;
#define MOO_SEMAPHORE_GROUP_NAMED_INSTVARS 7
#define MOO_SEMAPHORE_GROUP_NAMED_INSTVARS 8
typedef struct moo_semaphore_group_t moo_semaphore_group_t;
typedef struct moo_semaphore_group_t* moo_oop_semaphore_group_t;
@ -852,8 +852,8 @@ struct moo_semaphore_group_t
struct
{
moo_oop_process_t first;
moo_oop_process_t last; /* list of processes waiting on this semaphore group */
} waiting;
moo_oop_process_t last;
} waiting; /* list of processes waiting on this semaphore group */
/* [END IMPORTANT] */
struct
@ -863,6 +863,7 @@ struct moo_semaphore_group_t
} sems[2]; /* sems[0] - unsignaled semaphores, sems[1] - signaled semaphores */
moo_oop_t sem_io_count; /* the number of io semaphores in the group */
moo_oop_t sem_count; /* the total number of semaphores in the group */
};
#define MOO_PROCESS_SCHEDULER_NAMED_INSTVARS 9