X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=mymemory.cc;h=95459be561af6b7bab74d50610d470f1005c4464;hb=414b2df02223c9109c53228f905cea524a346cbf;hp=6fd7c704b9175c7c47a5df6a50016ded23046a8f;hpb=6d8f169552ab07df876bd11725162ac602c5f4fe;p=model-checker.git diff --git a/mymemory.cc b/mymemory.cc index 6fd7c70..95459be 100644 --- a/mymemory.cc +++ b/mymemory.cc @@ -68,6 +68,24 @@ void *model_malloc(size_t size) { #endif } +/** @brief Snapshotting malloc, for use by model-checker (not user progs) */ +void * snapshot_malloc(size_t size) +{ + return malloc(size); +} + +/** @brief Snapshotting calloc, for use by model-checker (not user progs) */ +void * snapshot_calloc(size_t count, size_t size) +{ + return calloc(count, size); +} + +/** @brief Snapshotting free, for use by model-checker (not user progs) */ +void snapshot_free(void *ptr) +{ + free(ptr); +} + void *system_malloc( size_t size ){ static void *(*mallocp)(size_t size); char *error; @@ -121,11 +139,12 @@ void model_free(void *ptr) { } -/** This global references the mspace for the snapshotting heap */ +/** @brief Global mspace reference for the snapshotting heap */ mspace mySpace = NULL; -/** This global references the unaligned memory address that was malloced for the snapshotting heap */ -void * basemySpace = NULL; +/** @brief Global reference to the unaligned memory address that was malloc'd + * for the snapshotting heap */ +void *basemySpace = NULL; /** Bootstrap allocation. Problem is that the dynamic linker calls * require calloc to work and calloc requires the dynamic linker to @@ -156,33 +175,36 @@ bool DontFree( void * ptr ){ return (ptr>=(&bootstrapmemory[0])&&ptr<(&bootstrapmemory[BOOTSTRAPBYTES])); } -/** Snapshotting malloc implementation for user programs. */ -void *malloc( size_t size ) { +/** @brief Snapshotting malloc implementation for user programs */ +void *malloc( size_t size ) +{ if (mySpace) { void *tmp=mspace_malloc( mySpace, size ); ASSERT(tmp); return tmp; - } else + } else return HandleEarlyAllocationRequest( size ); } -/** Snapshotting free implementation for user programs. */ +/** @brief Snapshotting free implementation for user programs */ void free( void * ptr ){ - if( DontFree( ptr ) ) return; - mspace_free( mySpace, ptr ); + if (!DontFree(ptr)) + mspace_free(mySpace, ptr); } -/** Snapshotting realloc implementation for user programs. */ -void *realloc( void *ptr, size_t size ){ - void *tmp=mspace_realloc( mySpace, ptr, size ); +/** @brief Snapshotting realloc implementation for user programs */ +void *realloc( void *ptr, size_t size ) +{ + void *tmp = mspace_realloc(mySpace, ptr, size); ASSERT(tmp); return tmp; } -/** Snapshotting calloc implementation for user programs. */ -void * calloc( size_t num, size_t size ){ +/** @brief Snapshotting calloc implementation for user programs */ +void * calloc( size_t num, size_t size ) +{ if (mySpace) { - void *tmp=mspace_calloc( mySpace, num, size ); + void *tmp = mspace_calloc(mySpace, num, size); ASSERT(tmp); return tmp; } else { @@ -192,22 +214,26 @@ void * calloc( size_t num, size_t size ){ } } -/** Snapshotting new operator for user programs. */ -void * operator new(size_t size) throw(std::bad_alloc) { +/** @brief Snapshotting new operator for user programs */ +void * operator new(size_t size) throw(std::bad_alloc) +{ return malloc(size); } -/** Snapshotting delete operator for user programs. */ -void operator delete(void *p) throw() { +/** @brief Snapshotting delete operator for user programs */ +void operator delete(void *p) throw() +{ free(p); } -/** Snapshotting new[] operator for user programs. */ -void * operator new[](size_t size) throw(std::bad_alloc) { +/** @brief Snapshotting new[] operator for user programs */ +void * operator new[](size_t size) throw(std::bad_alloc) +{ return malloc(size); } -/** Snapshotting delete[] operator for user programs. */ -void operator delete[](void *p, size_t size) { +/** @brief Snapshotting delete[] operator for user programs */ +void operator delete[](void *p, size_t size) +{ free(p); }