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Man Pages


Manual Reference Pages  -  CMAP_INC (3)

NAME

cmap_inc - Increase already stored value in CMAP

CONTENTS

Synopsis
Description
Return Value

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 database 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

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corosync Man Page CMAP_INC (3) 03/02/2012

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