CMAP_ITER_INIT(3) Corosync Cluster Engine Programmer's Manual CMAP_ITER_INIT(3)NAME
cmap_iter_init - Initialize iterator for keys stored in CMAP
SYNOPSIS
#include <corosync/cmap.h>
cs_error_t cmap_iter_init (cmap_handle_t handle, const char *prefix, cmap_iter_handle_t *cmap_iter_handle);
DESCRIPTION
The cmap_iter_init function is used to initialize iteration of all keys with given prefix. The handle argument is connection to CMAP data-
base obtained by calling cmap_initialize(3) function. prefix is string, and every returned key must have name with given prefix. This
variable can also be NULL (or empty string) and then all keys are iterated.
cmap_iter_init is used only for initialize context for future cmap_iter_next(3) calls and handle needed for that function is returned in
cmap_iter_handle variable. When you have finished iteration over objects, call cmap_iter_finalize(3) function to free up memory associated
with iteration.
RETURN VALUE
This call returns the CS_OK value if successful. If there are no items with given prefixes, CS_ERR_NO_SECTIONS is returned.
SEE ALSO cmap_iter_next(3), cmap_iter_finalize(3), cmap_initialize(3), cmap_overview(8)
CS_ERR_TRY_AGAIN Resource temporarily unavailable
CS_ERR_INVALID_PARAM Invalid argument
CS_ERR_ACCESS Permission denied
CS_ERR_LIBRARY The connection failed
CS_ERR_INTERRUPT System call inturrupted by a signal
CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported
CS_ERR_MESSAGE_ERROR Incorrect auth message received
CS_ERR_NO_MEMORY Not enough memory to completed the requested task
corosync Man Page 03/02/2012 CMAP_ITER_INIT(3)
Check Out this Related Man Page
CMAP_INC(3) Corosync Cluster Engine Programmer's Manual CMAP_INC(3)NAME
cmap_inc - Increase already stored value in CMAP
SYNOPSIS
#include <corosync/cmap.h>
cs_error_t cmap_inc (cmap_handle_t handle, const char *key_name);
DESCRIPTION
The cmap_inc function is used to increase integer value of already stored key inside cmap. The handle argument is connection to CMAP data-
base obtained by calling cmap_initialize(3) function. key_name is name of key to increase value of.
Function is defined only on values where increase makes sense and is well defined, so it can be one of:
CMAP_VALUETYPE_INT8 - 8-bit signed interger
CMAP_VALUETYPE_UINT8 - 8-bit unsigned integer
CMAP_VALUETYPE_INT16 - 16-bit signed interger
CMAP_VALUETYPE_UINT16 - 16-bit unsigned integer
CMAP_VALUETYPE_INT32 - 32-bit signed interger
CMAP_VALUETYPE_UINT32 - 32-bit unsigned integer
CMAP_VALUETYPE_INT64 - 64-bit signed interger
CMAP_VALUETYPE_UINT64 - 64-bit unsigned integer
Overflow/underflow is not detected and it's ignored.
RETURN VALUE
This call returns the CS_OK value if successful. If value or key_name are unspecified, CS_ERR_INVALID_PARAM is returned. CS_ERR_NOT_EXIST
error is returned if key doesn't exist (wasn't created by calling cmap_set(3) first). Some of keys may be tagged read-only directly in
corosync and seting such key will result in CS_ERR_ACCESS error.
SEE ALSO cmap_get(3), cmap_set(3), cmap_initialize(3), cmap_overview(8)
CS_ERR_TRY_AGAIN Resource temporarily unavailable
CS_ERR_INVALID_PARAM Invalid argument
CS_ERR_ACCESS Permission denied
CS_ERR_LIBRARY The connection failed
CS_ERR_INTERRUPT System call inturrupted by a signal
CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported
CS_ERR_MESSAGE_ERROR Incorrect auth message received
CS_ERR_NO_MEMORY Not enough memory to completed the requested task
corosync Man Page 03/02/2012 CMAP_INC(3)
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