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cmap_set(3) [centos man page]

CMAP_SET(3)					    Corosync Cluster Engine Programmer's Manual 				       CMAP_SET(3)

NAME
cmap_set - Store value in CMAP SYNOPSIS
#include <corosync/cmap.h> cs_error_t cmap_set (cmap_handle_t handle, const char *key_name, const void *value, size_t value_len, cmap_value_types_t type); Also shortcuts for different types are defined cs_error_t cmap_set_int8(cmap_handle_t handle, const char *key_name, int8_t value); cs_error_t cmap_set_uint8(cmap_handle_t handle, const char *key_name, uint8_t value); cs_error_t cmap_set_int16(cmap_handle_t handle, const char *key_name, int16_t value); cs_error_t cmap_set_uint16(cmap_handle_t handle, const char *key_name, uint16_t value); cs_error_t cmap_set_int32(cmap_handle_t handle, const char *key_name, int32_t value); cs_error_t cmap_set_uint32(cmap_handle_t handle, const char *key_name, uint32_t value); cs_error_t cmap_set_int64(cmap_handle_t handle, const char *key_name, int64_t value); cs_error_t cmap_set_uint64(cmap_handle_t handle, const char *key_name, uint64_t value); cs_error_t cmap_set_float(cmap_handle_t handle, const char *key_name, float value); cs_error_t cmap_set_double(cmap_handle_t handle, const char *key_name, double value); cs_error_t cmap_set_string(cmap_handle_t handle, const char *key_name, const char *value); DESCRIPTION
The cmap_set function is used to store key inside cmap. The handle argument is connection to CMAP database obtained by calling cmap_ini- tialize(3) function. key_name is name of key to set value. Key name is limited by minimal (CMAP_KEYNAME_MINLEN, currently 3) and maximal (CMAP_KEYNAME_MAXLEN, currently 255) length. Also key can contain only limited set of characters expressed by regexp [a-zA-Z0-9._-/:]*. value is pointer to allocated data which will be stored inside CMAP. Length of value (number of bytes) is supplied as value_len parameter. Last parameter is type which gives type of value. It may 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 CMAP_VALUETYPE_FLOAT - Float value CMAP_VALUETYPE_DOUBLE - Double value CMAP_VALUETYPE_STRING - C-style string CMAP_VALUETYPE_BINARY - Binary data, byte with zero value has no special meaning RETURN VALUE
This call returns the CS_OK value if successful. If value or key_name are unspecified, CS_ERR_INVALID_PARAM is returned. Too short or too long key_name returns CS_ERR_NAME_TOO_LONG error code. 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_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 23/01/2012 CMAP_SET(3)

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SAM_REGISTER(3) 				    Corosync Cluster Engine Programmer's Manual 				   SAM_REGISTER(3)

NAME
sam_rehister - Register component for health checking SYNOPSIS
#include <corosync/sam.h> cs_error_t sam_register (unsigned int *instance_id); DESCRIPTION
The sam_register function is used to register a process for healthchecking. If recovery policy is set to SAM_RECOVERY_POLICY_RESTART and recovery action will be taken, the new process instance will begin execution at the next code line after this function is called. This function can be called only once and SAM must be initialized by sam_initialize(3) function. The instance_id argument is a pointer to a value storing the current iteration instance. If this parameter is NULL, no instance_id is returned. and then, no instance_id will be returned. This value starts at 0 for the first iteration instance, and increases by 1 each time a recovery restart is executed. After reaching MAX_INT, the instance_id will reset to 0. The placement of this function is important because after it is called, the process id will change. After registration, event driven health checking is not running. RETURN VALUE
This call return CS_OK value if successful, otherwise and error is returned. ERRORS
CS_ERR_BAD_HANDLE health checking was not started by calling sam_start(3) function. CS_ERR_LIBRARY internal library call failed. This can be one of pipe creation or fork. It's possible to get more information from errno. SEE ALSO
sam_start(3), sam_initialize(3), sam_hc_callback_register(3) 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 12/01/2009 SAM_REGISTER(3)
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