85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/*for debugging print statments and timers
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* Troy Rosin TJR760 11200680
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* compile with -Ddebug and the prints will be there
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* otherwise nothing wil appear
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*
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* to use with makefile add the following
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*
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* debug ?=off
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* ifeq ($(debug),on)
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* CPPFLAGS += -Ddebug
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* endif
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*
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* then use "make debug=on" to make if you want the debug messages
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* just use make to build normally
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*
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*/
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#include <stdio.h>
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#include <time.h>
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#ifdef debug
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/*prints the name of the function that was called passed as an arg */
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#define PRINT_C(FUNC)\
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puts(#FUNC" was called");
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/*prints the message wanted followed by a \n no "" needed*/
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#define PRINT_M(MSG)\
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puts(#MSG);
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/*prints the name of a variable holding a pointer and its value*/
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#define PRINT_P(PTR)\
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printf(#PTR" has value %p\n", (void*)PTR);
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/*prints the varilble name holding the int and the value
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* Type is how you want it to print ie l, d, ld, u, f...
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* just pass the field type printf expects without the '%'
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*/
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#define PRINT_INT(VAR, TYPE)\
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printf(#VAR" has value %"#TYPE"\n", VAR);
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/*starts a timer so you can see how long fuctions can run for
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* you must end the timer within the same scope as the start
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* the id can be anything its only used to differentiate between
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* timers
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* T_START must be placed at the end of variable definitions to comply with C90
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* standards. if not using C90 go nuts
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*/
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#define T_START(ID)\
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struct timespec ID ## __d_timer_s__;\
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struct timespec ID ## __d_timer_e__;\
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clock_gettime(CLOCK_MONOTONIC_RAW, &ID ## __d_timer_s__);
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/*checks how long since the timer began and prints the seconds and nanoseconds
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* since. Can be called multiple times if needed
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*/
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#define T_END(ID)\
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clock_gettime(CLOCK_MONOTONIC_RAW, &ID ## __d_timer_e__);\
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printf("timer "#ID" took:\n%ld second(s) total\n%ld nanoseconds total\n",\
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((ID ## __d_timer_e__.tv_sec * 1000000000 + ID ## __d_timer_e__.tv_nsec - \
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ID ## __d_timer_s__.tv_sec * 1000000000 + ID ## __d_timer_s__.tv_nsec) - \
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((ID ## __d_timer_e__.tv_sec * 1000000000 + ID ## __d_timer_e__.tv_nsec-\
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ID ## __d_timer_s__.tv_sec * 1000000000 + ID ## __d_timer_s__.tv_nsec) \
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% 1000000000)) / 1000000000 , \
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ID ## __d_timer_e__.tv_sec * 1000000000 + ID ## __d_timer_e__.tv_nsec -\
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ID ## __d_timer_s__.tv_sec * 1000000000 + ID ## __d_timer_s__.tv_nsec );
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#else
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/*if debug was not defined we insert nothing there*/
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#define PRINT_C(X) {}
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#define PRINT_M(X) {}
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#define PRINT_P(X) {}
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#define PRINT_INT(X,Y) {}
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#define T_START(X) {}
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#define T_END(X) {}
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#endif
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