cmap_dec(3) [centos man page]
CMAP_DEC(3) Corosync Cluster Engine Programmer's Manual CMAP_DEC(3) NAME
cmap_inc - Decrease already stored value in CMAP SYNOPSIS
#include <corosync/cmap.h> cs_error_t cmap_dec (cmap_handle_t handle, const char *key_name); DESCRIPTION
The cmap_dec function is used to decrease 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_DEC(3)
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VOTEQUORUM_QDEVICE_POLL(3) Corosync Cluster Engine Programmer's Manual VOTEQUORUM_QDEVICE_POLL(3) NAME
votequorum_qdevice_poll - Tells votequorum the result of the quorum device poll SYNOPSIS
#include <corosync/votequorum.h> int votequorum_qdevice_poll(votequorum_handle_t handle, const char * name, unsigned int cast_vote); DESCRIPTION
The votequorum_qdevice_poll is called by the quorum device subsystem (not provided as part of votequorum) to tell the voting system if the quorum device is present/active or not. If cast_vote is 1 then the votes for the device are included in the quorum calculation, otherwise not. This routine should be called at regular intervals to ensure that the device status is always known to votequorum. If votequorum_qde- vice_poll is not called for (default) 10 seconds then the device will be deemed to be dead and its votes removed from the cluster. This does not unregister the device. The default poll time can be changed by setting the cmap variable quorum.quorumdev_poll. RETURN VALUE
This call returns the CS_OK value if successful, otherwise an error is returned. ERRORS
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 SEE ALSO
votequorum_overview(8), votequorum_initialize(3), votequorum_finalize(3), votequorum_getinfo(3), votequorum_trackstart(3), votequo- rum_trackstop(3), votequorum_fd_get(3), votequorum_dispatch(3), votequorum_context_set(3), votequorum_context_get(3), votequorum_setex- pected(3), votequorum_setvotes(3), votequorum_qdevice_register(3), votequorum_qdevice_unregister(3), votequorum_qdevice_update(3), votequo- rum_qdevice_master_wins(3), corosync Man Page 2014-06-10 VOTEQUORUM_QDEVICE_POLL(3)