
#ifndef INSTALL_SHM_H
#define INSTALL_SHM_H

#ifdef UNICODE
#define createSharedData createSharedDataW
#define destroySharedData destroySharedDataW
#define getSharedData getSharedDataW
#define setSharedData setSharedDataW
#endif

/* Shared memory utilities */

/**
 * Creates and initializes a shared memory segment
 * with the specified size in bytes. The id for the
 * shared memory segment is stored in the id argument
 * and can be used from any process. It must be freed
 * with free().
 *
 * Returns 0 if success.
 */
extern int createSharedData(_TCHAR** id, int size);

/**
 * Destroy the shared memory segment specified by the
 * id argument. The id is the same as the one return
 * by createSharedData(). This function must be called
 * by the same process that created the segment.
 *
 * Returns 0 if success.
 */
extern int destroySharedData(_TCHAR* id);

/**
 * Gets a copy of the shared memory segment specified
 * by the id argument. The copy is stored in the data
 * argument as a null terminated string and must be
 * freed by free().
 *
 * Returns 0 if success.
 */
extern int getSharedData(_TCHAR* id, _TCHAR** data);

/**
 * Sets the shared memory segment specified by the id
 * argument with a null terminated string specified by
 * data.
 *
 * Returns 0 if sucess.
 */
extern int setSharedData(_TCHAR* id, _TCHAR* data);

#endif /* INSTALL_SHM_H */