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#ifndef RRDLIB_H_4FD7D37D56A448C392AF46508C56D3CC #define RRDLIB_H_4FD7D37D56A448C392AF46508C56D3CC /***************************************************************************** * RRDtool 1.7.2 Copyright by Tobi Oetiker ***************************************************************************** * rrdlib.h Public header file for librrd ***************************************************************************** * $Id$ * $Log$ * Revision 1.9 2005/02/13 16:13:33 oetiker * let rrd_graph return the actual value range it picked ... * -- Henrik Stoerner <henrik@hswn.dk> * * Revision 1.8 2004/05/26 22:11:12 oetiker * reduce compiler warnings. Many small fixes. -- Mike Slifcak <slif@bellsouth.net> * * Revision 1.7 2003/11/12 22:14:26 oetiker * allow to pass an open filehandle into rrd_graph as an extra argument * * Revision 1.6 2003/11/11 19:46:21 oetiker * replaced time_value with rrd_time_value as MacOS X introduced a struct of that name in their standard headers * * Revision 1.5 2003/04/25 18:35:08 jake * Alternate update interface, updatev. Returns info about CDPs written to disk as result of update. Output format is similar to rrd_info, a hash of key-values. * * Revision 1.4 2003/04/01 22:52:23 jake * Fix Win32 build. VC++ 6.0 and 7.0 now use the thread-safe code. * * Revision 1.3 2003/02/13 07:05:27 oetiker * Find attached the patch I promised to send to you. Please note that there * are three new source files (src/rrd_is_thread_safe.h, src/rrd_thread_safe.c * and src/rrd_not_thread_safe.c) and the introduction of librrd_th. This * library is identical to librrd, but it contains support code for per-thread * global variables currently used for error information only. This is similar * to how errno per-thread variables are implemented. librrd_th must be linked * alongside of libpthread * * There is also a new file "THREADS", holding some documentation. * * -- Peter Stamfest <peter@stamfest.at> * * Revision 1.2 2002/05/07 21:58:32 oetiker * new command rrdtool xport integrated * -- Wolfgang Schrimm <Wolfgang.Schrimm@urz.uni-heidelberg.de> * * Revision 1.1.1.1 2001/02/25 22:25:05 oetiker * checkin * *****************************************************************************/ #ifdef __cplusplus extern "C" { #endif #include <sys/types.h> /* for off_t */ #ifndef _WIN32 #include <unistd.h> /* for off_t */ #else #ifdef _MSC_VER #ifndef PERLPATCHLEVEL typedef int mode_t; #endif #define strtoll _strtoi64 #endif #ifndef __MINGW32__ /* MinGW-w64 has ssize_t and off_t */ typedef size_t ssize_t; typedef long off_t; #endif #endif #include <time.h> #include <stdio.h> /* for FILE */ #include <string.h> /* Formerly rrd_nan_inf.h */ #ifndef DNAN # define DNAN rrd_set_to_DNAN() #endif /* declare opaque data structure, so we can use its pointers for type safety */ struct rrd_t; #ifndef DINF # define DINF rrd_set_to_DINF() #endif double rrd_set_to_DNAN( void); double rrd_set_to_DINF( void); /* end of rrd_nan_inf.h */ /* Transplanted from rrd_format.h */ typedef double rrd_value_t; /* the data storage type is * double */ /* END rrd_format.h */ /* information about an rrd file */ typedef struct rrd_file_t { size_t header_len; /* length of the header of this rrd file */ size_t file_len; /* total size of the rrd file */ size_t pos; /* current pos in file */ void *pvt; struct rrd_t *rrd; /* the corresponding RRD structure, if any */ #ifdef HAVE_LIBRADOS struct rrd_rados_t *rados; #endif } rrd_file_t; /* information used for the conventional file access methods */ typedef struct rrd_simple_file_t { int fd; /* file descriptor of this rrd file */ #ifdef HAVE_MMAP char *file_start; /* start address of an open rrd file */ int mm_prot; int mm_flags; #endif } rrd_simple_file_t; /* rrd info interface */ typedef struct rrd_blob_t { unsigned long size; /* size of the blob */ unsigned char *ptr; /* pointer */ } rrd_blob_t; typedef enum rrd_info_type { RD_I_VAL = 0, RD_I_CNT, RD_I_STR, RD_I_INT, RD_I_BLO } rrd_info_type_t; typedef union rrd_infoval { unsigned long u_cnt; rrd_value_t u_val; char *u_str; int u_int; rrd_blob_t u_blo; } rrd_infoval_t; typedef struct rrd_info_t { char *key; rrd_info_type_t type; rrd_infoval_t value; struct rrd_info_t *next; } rrd_info_t; typedef size_t (* rrd_output_callback_t)( const void *, size_t, void *); /* main function blocks */ int rrd_create( int, char **); rrd_info_t *rrd_info( int, char **); rrd_info_t *rrd_info_push( rrd_info_t *, char *, rrd_info_type_t, rrd_infoval_t); void rrd_info_print( rrd_info_t * data); void rrd_info_free( rrd_info_t *); char *rrd_list(int, char **); char *rrd_list_r(int, char *dirname); int rrd_update( int, char **); rrd_info_t *rrd_update_v( int, char **); int rrd_graph( int, char **, char ***, int *, int *, FILE *, double *, double *); rrd_info_t *rrd_graph_v( int, char **); int rrd_fetch( int, char **, time_t *, time_t *, unsigned long *, unsigned long *, char ***, rrd_value_t **); int rrd_restore( int, char **); int rrd_dump( int, char **); int rrd_tune( int, char **); time_t rrd_last( int, char **); int rrd_lastupdate(int argc, char **argv); time_t rrd_first( int, char **); int rrd_resize( int, char **); char *rrd_strversion( void); double rrd_version( void); int rrd_xport( int, char **, int *, time_t *, time_t *, unsigned long *, unsigned long *, char ***, rrd_value_t **); int rrd_flushcached (int argc, char **argv); void rrd_freemem( void *mem); /* thread-safe (hopefully) */ int rrd_create_r( const char *filename, unsigned long pdp_step, time_t last_up, /* int no_overwrite, */ int argc, const char **argv); int rrd_create_r2( const char *filename, unsigned long pdp_step, time_t last_up, int no_overwrite, const char **sources, const char *_template, int argc, const char **argv); rrd_info_t *rrd_info_r( const char *); /* NOTE: rrd_update_r and rrd_update_v_r are only thread-safe if no at-style time specifications get used!!! */ int rrd_update_r( const char *filename, const char *_template, int argc, const char **argv); int rrd_update_v_r( const char *filename, const char *_template, int argc, const char **argv, rrd_info_t * pcdp_summary); /* extra flags */ #define RRD_SKIP_PAST_UPDATES 0x01 int rrd_updatex_r( const char *filename, const char *_template, int extra_flags, int argc, const char **argv); int rrd_updatex_v_r( const char *filename, const char *_template, int extra_flags, int argc, const char **argv, rrd_info_t * pcdp_summary); int rrd_fetch_r ( const char *filename, const char *cf, time_t *start, time_t *end, unsigned long *step, unsigned long *ds_cnt, char ***ds_namv, rrd_value_t **data); int rrd_dump_opt_r(const char *filename, char *outname, int opt_noheader); int rrd_dump_r( const char *filename, char *outname); time_t rrd_last_r (const char *filename); int rrd_lastupdate_r (const char *filename, time_t *ret_last_update, unsigned long *ret_ds_count, char ***ret_ds_names, char ***ret_last_ds); time_t rrd_first_r( const char *filename, const int rraindex); int rrd_dump_cb_r( const char *filename, int opt_header, rrd_output_callback_t cb, void *user); /* Transplanted from rrd_parsetime.h */ typedef enum { ABSOLUTE_TIME, RELATIVE_TO_START_TIME, RELATIVE_TO_END_TIME, RELATIVE_TO_EPOCH } rrd_timetype_t; #define TIME_OK NULL typedef struct rrd_time_value { rrd_timetype_t type; long offset; struct tm tm; } rrd_time_value_t; char *rrd_parsetime( const char *spec, rrd_time_value_t * ptv); /* END rrd_parsetime.h */ typedef struct rrd_context { char lib_errstr[256]; char rrd_error[4096]; } rrd_context_t; /* returns the current per-thread rrd_context */ rrd_context_t *rrd_get_context(void); #ifdef _WIN32 /* this was added by the win32 porters Christof.Wegmann@exitgames.com */ rrd_context_t *rrd_force_new_context(void); #endif int rrd_proc_start_end( rrd_time_value_t *, rrd_time_value_t *, time_t *, time_t *); /* HELPER FUNCTIONS */ void rrd_set_error( char *, ...); void rrd_clear_error( void); int rrd_test_error( void); char *rrd_get_error( void); /* rrd_strerror is thread safe, but still it uses a global buffer (but one per thread), thus subsequent calls within a single thread overwrite the same buffer */ const char *rrd_strerror( int err); /** MULTITHREADED HELPER FUNCTIONS */ rrd_context_t *rrd_new_context( void); void rrd_free_context( rrd_context_t * buf); /* void rrd_set_error_r (rrd_context_t *, char *, ...); */ /* void rrd_clear_error_r(rrd_context_t *); */ /* int rrd_test_error_r (rrd_context_t *); */ /* char *rrd_get_error_r (rrd_context_t *); */ /** UTILITY FUNCTIONS */ long rrd_random(void); int rrd_add_ptr_chunk(void ***dest, size_t *dest_size, void *src, size_t *alloc, size_t chunk); int rrd_add_ptr(void ***dest, size_t *dest_size, void *src); int rrd_add_strdup(char ***dest, size_t *dest_size, char *src); int rrd_add_strdup_chunk(char ***dest, size_t *dest_size, char *src, size_t *alloc, size_t chunk); void rrd_free_ptrs(void ***src, size_t *cnt); int rrd_mkdir_p(const char *pathname, mode_t mode); const char * rrd_scaled_duration (const char * token, unsigned long divisor, unsigned long * valuep); void rrd_thread_init(void); /* * The following functions are _internal_ functions needed to read the raw RRD * files. Since they are _internal_ they may change with the file format and * will be replaced with a more general interface in RRDtool 1.7.2 Don't use * these functions unless you have good reasons to do so. If you do use these * functions you will have to adapt your code for RRDtool 1.7.2 * * To enable the deprecated functions define `RRD_EXPORT_DEPRECATED' before * including <rrd_test.h>. You have been warned! If you come back to the * RRDtool mailing list and whine about your broken application, you will get * hit with something smelly! */ #if defined(RRD_TOOL_H_3853987DDF7E4709A5B5849E5A6204F4) || defined(RRD_EXPORT_DEPRECATED) # if defined(RRD_TOOL_H_3853987DDF7E4709A5B5849E5A6204F4) # include "rrd_format.h" # else # include <rrd_format.h> # endif #if defined(__GNUC__) && defined (RRD_EXPORT_DEPRECATED) # define RRD_DEPRECATED __attribute__((deprecated)) #else # define RRD_DEPRECATED /**/ #endif void rrd_free( rrd_t *rrd) RRD_DEPRECATED; void rrd_init( rrd_t *rrd) RRD_DEPRECATED; rrd_file_t *rrd_open( const char *const file_name, rrd_t *rrd, unsigned rdwr) RRD_DEPRECATED; void rrd_dontneed( rrd_file_t *rrd_file, rrd_t *rrd) RRD_DEPRECATED; int rrd_close( rrd_file_t *rrd_file) RRD_DEPRECATED; ssize_t rrd_read( rrd_file_t *rrd_file, void *buf, size_t count) RRD_DEPRECATED; ssize_t rrd_write( rrd_file_t *rrd_file, const void *buf, size_t count) RRD_DEPRECATED; void rrd_flush( rrd_file_t *rrd_file) RRD_DEPRECATED; off_t rrd_seek( rrd_file_t *rrd_file, off_t off, int whence) RRD_DEPRECATED; off_t rrd_tell( rrd_file_t *rrd_file) RRD_DEPRECATED; int rrd_lock( rrd_file_t *file) RRD_DEPRECATED; void rrd_notify_row( rrd_file_t *rrd_file, int rra_idx, unsigned long rra_row, time_t rra_time) RRD_DEPRECATED; unsigned long rrd_select_initial_row( rrd_file_t *rrd_file, int rra_idx, rra_def_t *rra ) RRD_DEPRECATED; #endif /* defined(_RRD_TOOL_H) || defined(RRD_EXPORT_DEPRECATED) */ #ifdef __cplusplus } #endif #endif /* RRDLIB_H */