fastdl.h File Reference

libfastdl header file. More...

#include <libgenc/genc_Map.h>
#include <stdint.h>

Classes
struct	fastdl_Symbol
	Struct which contains a function pointer. More...
struct	fastdl_Handle
	Struct which holds libdl handle and a map of fastdl_Symbol. More...

Macros
#define	FASTDL_SYM(handle, symbolName, symbolPointer, ret)

Functions
int	fastdl_open (struct fastdl_Handle *handle, const char *path, int flag)
int	fastdl_sym (struct fastdl_Handle *handle, const char *symbolName, void **symbolPointer)
int	fastdl_close (struct fastdl_Handle *handle)
char *	fastdl_error ()

Detailed Description

libfastdl header file.

Author

Byeonggon Lee

Macro Definition Documentation

FASTDL_SYM

#define FASTDL_SYM	(		handle,
			symbolName,
			symbolPointer,
			ret
	)

Value:

do { \
    struct fastdl_Symbol* symbol = NULL; \
    struct fastdl_Symbol* oldSymbol = NULL; \
    size_t symbolNameLength = strlen(symbolName); \
    GENC_MAP_GET(handle, symbolName, symbolNameLength, &symbol); \
    if(symbol != NULL) { \
        *(symbolPointer) = symbol->pointer; \
        *(ret) = 1; \
        break; \
    } \
    *(symbolPointer) = dlsym((handle)->dlHandle, symbolName); \
    if(*(symbolPointer) == NULL) { \
        *(ret) = -1; \
        break; \
    } \
    symbol = malloc(sizeof(struct fastdl_Symbol)); \
    GENC_MAP_ELEM_INIT(symbol); \
    GENC_MAP_ELEM_KEY(symbol) = (const uint8_t*)symbolName; \
    GENC_MAP_ELEM_KEY_LENGTH(symbol) = symbolNameLength; \
    symbol->pointer = *(symbolPointer); \
    GENC_MAP_SET(handle, symbol, &oldSymbol); \
    *(ret) = 0; \
} while(0)