pmDiscoverServices – discover PCP services on the network C Synopsis #include <pcp/pmapi.h> int pmDiscoverServices(const char *service, const char *mechanism, char ***urls); #include <pcp/impl.h> int __pmDiscoverServicesWithOptions(const char *service, const char *mechanism, const char *optionsString, const volatile unsigned *flags, char ***urls); cc … -lpcp Description Given a PCP service name, as identified by service, and using the…
pmDestroyContext – destroy a PMAPI context C Synopsis #include <pcp/pmapi.h> int pmDestroyContext(int handle); cc … -lpcp Description An application using the Performance Metrics Application Programming Interface (PMAPI) may manipulate several concurrent contexts, each associated with a source of performance metrics, e.g. pmcd(1) on some host, or an archive log of performance metrics as created by…
pmDerivedErrStr – return error message from failure to parse derived metric definition C Synopsis #include <pcp/pmapi.h> char *pmDerivedErrStr(void); cc … -lpcp Description When pmRegisterDerived(3) is called to add a new derived metric definition and an error occurs, pmDerivedErrStr may be called to return the associated error message. The pmRegisterDerivedMetric interface provides a convenience wrapper around…
pmDelProfile – delete instance(s) from the current PMAPI instance profile C Synopsis #include <pcp/pmapi.h> int pmDelProfile(pmInDom indom, int numinst, int *instlist); cc … -lpcp Description The set of instances for performance metrics returned from a pmFetch(3) call may be filtered or restricted using an instance profile. There is one instance profile for each context the…
pmCtime – format the date and time for a reporting timezone C Synopsis #include <time.h> #include <pcp/pmapi.h> char *pmCtime(const time_t *clock, char *buf); cc … -lpcp Description pmCtime is very similar to ctime(3), except the timezone used is the current “reporting timezone” (rather than the default TZ environment variable scheme), and the result is returned…
pmCreateFetchGroup, pmExtendFetchGroup_item, pmExtendFetchGroup_indom, pmExtendFetchGroup_event, pmExtendFetchGroup_timestamp, pmFetchGroup, pmGetFetchGroupContext, pmDestroyFetchGroup – simplified performance metrics value fetch and conversion C Synopsis #include <pcp/pmapi.h> int pmCreateFetchGroup(pmFG *ptr, int type, const char *name); int pmExtendFetchGroup_item(pmFG pmfg, const char *metric, const char *instance, const char *scale, pmAtomValue *out_value, int out_type, int out_sts); int pmExtendFetchGroup_indom(pmFG pmfg, const char *metric, const char *scale,…
pmConvScale – rescale a performance metric value C Synopsis #include <pcp/pmapi.h> int pmConvScale(int type, const pmAtomValue *ival, const pmUnits *iunit, pmAtomValue *oval, const pmUnits *ounit); cc … -lpcp Description All performance metric values may be encoded in a pmAtomValue union, defined as follows; typedef union { __int32_t l; /* 32-bit signed */ __uint32_t ul; /* 32-bit unsigned */…
pmAtomStr, pmAtomStr_r – convert a performance metric value into a string C Synopsis #include <pcp/pmapi.h> const char *pmAtomStr(const pmAtomValue *avp, int type); char *pmAtomStr_r(const pmAtomValue *avp, int type, char *buf, int buflen); cc … -lpcp Description All performance metric values may be encoded in a pmAtomValue union, defined as follows; typedef union { __int32_t l;…
pmAddProfile – add instance(s) to the current PMAPI instance profile C Synopsis #include <pcp/pmapi.h> int pmAddProfile(pmInDom indom, int numinst, int *instlist); cc … -lpcp Description The set of instances for performance metrics returned from a pmFetch(3) call may be filtered or restricted using an instance profile. There is one instance profile for each context the…
play_sample – Plays a sample. Allegro game programming library. Synopsis #include <allegro.h> int play_sample(const SAMPLE *spl, int vol, int pan, int freq, int loop); Description Triggers a sample at the specified volume, pan position, and frequency. The parameters `vol’ and `pan’ range from 0 (min/left) to 255 (max/right). Frequency is relative rather than absolute: 1000…
play_midi – Starts playing the specified MIDI file. Allegro game programming library. Synopsis #include <allegro.h> int play_midi(MIDI *midi, int loop); Description Starts playing the specified MIDI file, first stopping whatever music was previously playing. If the loop flag is set to non-zero, the data will be repeated until replaced with something else, otherwise it will…
play_memory_fli – Plays a FLI or FLC animation from memory. Allegro game programming library. Synopsis #include <allegro.h> int play_memory_fli(const void *fli_data, BITMAP *bmp, int loop, int (*callback)()); Description Plays an Autodesk Animator FLI or FLC animation on the specified BITMAP, reading the data from a copy of the file which is held in memory. You…
play_looped_midi – Starts playing a MIDI file with a user-defined loop position. Allegro game programming library. Synopsis #include <allegro.h> int play_looped_midi(MIDI *midi, int loop_start, int loop_end); Description Starts playing a MIDI file with a user-defined loop position. When the player reaches the loop end position or the end of the file (loop_end may be -1…
play_fli – Plays a FLI or FLC animation from disk. Allegro game programming library. Synopsis #include <allegro.h> int play_fli(const char *filename, BITMAP *bmp, int loop, int (*callback)()); Description Plays an Autodesk Animator FLI or FLC animation file on the specified BITMAP, reading the data from disk as it is required. If `loop’ is not zero,…
play_audio_stream – Creates a new audio stream and starts playing it. Allegro game programming library. Synopsis #include <allegro.h> AUDIOSTREAM *play_audio_stream(int len, int bits, int stereo, int freq, int vol, int pan); Description This function creates a new audio stream and starts playing it. The length is the size of each transfer buffer in sample frames…
pj_init – initialize cartographic projection pj_init_plus – initialize cartographic projection pj_fwd – forward cartographic projection pj_inv – inverse cartographic projection pj_transform – transform between coordinate systems pj_free – de-initialize projection Synopsis #include <proj_api.h> projPJ pj_init(int argc, char **argv) projPJ pj_init_plus(const char *defn) projUV pj_fwd(projUV val, projPJ proj) projUV pj_inv(projUV val, projPJ proj) int pj_transform(projPJ src_cs,…
pivot_sprite_v_flip – Rotates and flips a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_sprite_v_flip(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle); Description Like rotate_sprite_v_flip(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the bitmap, then rotates…
pivot_sprite – Rotates a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_sprite(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle); Description Like rotate_sprite(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the bitmap, then rotates around this…
pivot_scaled_sprite_v_flip – Rotates, stretches and flips a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_scaled_sprite_v_flip(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle, fixed scale); Description Like rotate_scaled_sprite_v_flip(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the…
pivot_scaled_sprite – Rotates and stretches a sprite around a specified point. Allegro game programming library. Synopsis #include <allegro.h> void pivot_scaled_sprite(BITMAP *bmp, BITMAP *sprite, int x, int y, int cx, int cy, fixed angle, fixed scale); Description Like rotate_scaled_sprite(), but aligns the point in the sprite given by (cx, cy) to (x, y) in the bitmap,…