diff options
Diffstat (limited to 'lcmodule/source/cnh1605551_ldr_utilities/critical_section/critical_section.c')
| -rw-r--r--[-rwxr-xr-x] | lcmodule/source/cnh1605551_ldr_utilities/critical_section/critical_section.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lcmodule/source/cnh1605551_ldr_utilities/critical_section/critical_section.c b/lcmodule/source/cnh1605551_ldr_utilities/critical_section/critical_section.c index 126d3e7..b6dafd3 100755..100644 --- a/lcmodule/source/cnh1605551_ldr_utilities/critical_section/critical_section.c +++ b/lcmodule/source/cnh1605551_ldr_utilities/critical_section/critical_section.c @@ -39,10 +39,12 @@ */ CriticalSection_t Do_CriticalSection_Create(void) { - uint32 *cs = (uint32*)malloc(sizeof(uint32)); + uint32 *cs = (uint32 *)malloc(sizeof(uint32)); + if (NULL != cs) { *cs = CS_UNLOCKED; } + return cs; } @@ -58,7 +60,7 @@ CriticalSection_t Do_CriticalSection_Create(void) */ void Do_CriticalSection_Destroy(CriticalSection_t *CriticalSectionObject) { - uint32** cs = (uint32**)CriticalSectionObject; + uint32 **cs = (uint32 **)CriticalSectionObject; if (NULL != *cs) { free(*cs); @@ -80,9 +82,11 @@ void Do_CriticalSection_Destroy(CriticalSection_t *CriticalSectionObject) boolean Do_CriticalSection_Enter(CriticalSection_t CriticalSectionObject) { volatile uint32 *cs = (volatile uint32 *)CriticalSectionObject; + if (NULL != cs) { uint32 cs_status = CS_LOCKED; cs_status = Do_Atomic_CompareAndSwap(cs, CS_UNLOCKED, CS_LOCKED); + if (CS_UNLOCKED == cs_status) { return TRUE; } else { @@ -108,9 +112,11 @@ boolean Do_CriticalSection_Enter(CriticalSection_t CriticalSectionObject) void Do_CriticalSection_Leave(CriticalSection_t CriticalSectionObject) { volatile uint32 *cs = (volatile uint32 *)CriticalSectionObject; + if (NULL != cs) { uint32 cs_status = CS_UNLOCKED; cs_status = Do_Atomic_CompareAndSwap(cs, CS_LOCKED, CS_UNLOCKED); + if (CS_LOCKED == cs_status) { /* SUCCESS */ } else { |