--- libaitsess/inc/aitsess.h 2011/08/21 14:00:43 1.2.2.2 +++ libaitsess/inc/aitsess.h 2011/09/07 16:08:41 1.3.2.2 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ -* $Id: aitsess.h,v 1.2.2.2 2011/08/21 14:00:43 misho Exp $ +* $Id: aitsess.h,v 1.3.2.2 2011/09/07 16:08:41 misho Exp $ * ************************************************************************** The ELWIX and AITNET software is distributed under the following @@ -47,8 +47,10 @@ SUCH DAMAGE. #define __AITSESS_H +#include #include #include +#include #define SHARED_UNKNOWN 0 #define SHARED_IPC 1 @@ -61,13 +63,14 @@ SUCH DAMAGE. #define ISNEW(x) (((x) & IS_ADD) == IS_ADD) #define ISDEF(x) (((x) & IS_DEF) == IS_DEF) -#define MAX_ATTRIBUTE 63 +#define MAX_ATTRIBUTE 64 #define MAX_SEMNAME 14 typedef struct _tagSess { key_t key; u_char type; + u_char zcopy; off_t eom; void *addr; off_t offset; @@ -87,6 +90,8 @@ typedef struct _tagSess { inline int sess_GetErrno(); // sess_GetError() Get error text of last operation inline const char *sess_GetError(); +// sess_SetErr() Set error to variables for internal use!!! +inline void sess_SetErr(int eno, char *estr, ...); // ------------------------------------------------------- @@ -226,7 +231,7 @@ inline int ipc_decSemaphore(tagSess * __restrict s); // Lazy macros for lazy programmers :-) by Michael Pounov; Optimizing work with sessions! // -#define DESTROY_SESSION(fname, s) do { \ +#define DESTROY_SESSION(fname, s) do { assert((s)); assert((*s)); \ switch (((*s))->type) { \ case SHARED_IPC: \ ipc_destroySession((fname), (s)); \ @@ -237,7 +242,7 @@ inline int ipc_decSemaphore(tagSess * __restrict s); } \ } while(0) -#define ATTACH_MEMORY(s) do { \ +#define ATTACH_MEMORY(s) do { assert((s)); \ switch ((s)->type) { \ case SHARED_IPC: \ ipc_attachSession((s), 0); \ @@ -248,7 +253,7 @@ inline int ipc_decSemaphore(tagSess * __restrict s); } \ } while(0) -#define DETACH_MEMORY(s) do { \ +#define DETACH_MEMORY(s) do { assert((s)); \ switch ((s)->type) { \ case SHARED_IPC: \ ipc_detachSession((s)); \ @@ -259,7 +264,7 @@ inline int ipc_decSemaphore(tagSess * __restrict s); } \ } while(0) -#define NOT_SEMAPHORE(s) do { \ +#define NOT_SEMAPHORE(s) do { assert((s)); \ switch ((s)->type) { \ case SHARED_IPC: \ ipc_notSemaphore((s)); \ @@ -270,7 +275,7 @@ inline int ipc_decSemaphore(tagSess * __restrict s); } \ } while(0) -#define IS_SEMAPHORED(s, ret) do { \ +#define IS_SEMAPHORED(s, ret) do { assert((s)); \ switch ((s)->type) { \ case SHARED_IPC: \ (ret) = ipc_isSemaphored((s)); \ @@ -283,7 +288,7 @@ inline int ipc_decSemaphore(tagSess * __restrict s); } \ } while(0) -#define ADD_SEMAPHORE(s, ret) do { \ +#define ADD_SEMAPHORE(s, ret) do { assert((s)); \ switch ((s)->type) { \ case SHARED_IPC: \ (ret) = ipc_addSemaphore((s)); \ @@ -296,7 +301,7 @@ inline int ipc_decSemaphore(tagSess * __restrict s); } \ } while(0) -#define DEC_SEMAPHORE(s, ret) do { \ +#define DEC_SEMAPHORE(s, ret) do { assert((s)); \ switch ((s)->type) { \ case SHARED_IPC: \ (ret) = ipc_decSemaphore((s)); \ @@ -350,6 +355,29 @@ int sess_DelValue(tagSess * __restrict s, const char * >0 set position, if add item merged with IS_ADD and if define item merged with IS_DEF */ int sess_SetValue(tagSess * __restrict s, const char *csAttr, const char *psVal); + +/* + * sess_prepareSession() Attach to shared memory and de-marshaling data + * @s = Session + * @useDirect = Use direct shared memory if !=0 or snapshot of data to array + * return: NULL error or no data, !=NULL array with variables, + * after use must free resources with sess_doneSession() + */ +array_t *sess_prepareSession(tagSess * __restrict s, unsigned char useDirect); +/* + * sess_doneSession() Free resources allocated with sess_prepareSession() + * @s = Session + * @arr = Array with variables for free + * return: none + */ +void sess_doneSession(tagSess * __restrict s, array_t ** __restrict arr); +/* + * sess_commitSession() Commit data to shared memory + * @s = Session + * @arr = Array with variables for save + * return -1 error or !=-1 size of stored variables into shared memory + */ +int sess_commitSession(tagSess * __restrict s, array_t * __restrict arr); #endif