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Diffstat (limited to 'innobase/ut/ut0ut.c')
-rw-r--r-- | innobase/ut/ut0ut.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/innobase/ut/ut0ut.c b/innobase/ut/ut0ut.c new file mode 100644 index 00000000000..8af1f7487f4 --- /dev/null +++ b/innobase/ut/ut0ut.c @@ -0,0 +1,164 @@ +/******************************************************************* +Various utilities for Innobase. + +(c) 1994, 1995 Innobase Oy + +Created 5/11/1994 Heikki Tuuri +********************************************************************/ + +#include "ut0ut.h" + +#ifdef UNIV_NONINL +#include "ut0ut.ic" +#endif + +#include "ut0sort.h" + +ibool ut_always_false = FALSE; + +/************************************************************ +The following function returns a clock time in milliseconds. */ + +ulint +ut_clock(void) +{ + return((clock() * 1000) / CLOCKS_PER_SEC); +} + +/************************************************************** +Returns system time. We do not specify the format of the time returned: +the only way to manipulate it is to use the function ut_difftime. */ + +ib_time_t +ut_time(void) +/*=========*/ +{ + return(time(NULL)); +} + +/************************************************************** +Returns the difference of two times in seconds. */ + +double +ut_difftime( +/*========*/ + /* out: time2 - time1 expressed in seconds */ + ib_time_t time2, /* in: time */ + ib_time_t time1) /* in: time */ +{ + return(difftime(time2, time1)); +} + +/***************************************************************** +Runs an idle loop on CPU. The argument gives the desired delay +in microseconds on 100 MHz Pentium + Visual C++. */ + +ulint +ut_delay( +/*=====*/ + /* out: dummy value */ + ulint delay) /* in: delay in microseconds on 100 MHz Pentium */ +{ + ulint i, j; + + j = 0; + + for (i = 0; i < delay * 50; i++) { + j += i; + } + + if (ut_always_false) { + printf("%lu", j); + } + + return(j); +} + +/***************************************************************** +Prints the contents of a memory buffer in hex and ascii. */ + +void +ut_print_buf( +/*=========*/ + byte* buf, /* in: memory buffer */ + ulint len) /* in: length of the buffer */ +{ + byte* data; + ulint i; + + printf(" len %lu; hex ", len); + + data = buf; + + for (i = 0; i < len; i++) { + printf("%02x", (ulint)*data); + data++; + } + + printf("; asc "); + + data = buf; + + for (i = 0; i < len; i++) { + if (isprint((char)(*data))) { + printf("%c", (char)*data); + } + data++; + } + + printf(";"); +} + +/***************************************************************** +Prints the contents of a memory buffer in hex and ascii. */ + +ulint +ut_sprintf_buf( +/*===========*/ + /* out: printed length in bytes */ + char* str, /* in: buffer to print to */ + byte* buf, /* in: memory buffer */ + ulint len) /* in: length of the buffer */ +{ + byte* data; + ulint n; + ulint i; + + n = 0; + + n += sprintf(str + n, " len %lu; hex ", len); + + data = buf; + + for (i = 0; i < len; i++) { + n += sprintf(str + n, "%02x", (ulint)*data); + data++; + } + + n += sprintf(str + n, "; asc "); + + data = buf; + + for (i = 0; i < len; i++) { + if (isprint((char)(*data))) { + n += sprintf(str + n, "%c", (char)*data); + } + + data++; + } + + n += sprintf(str + n, ";"); + + return(n); +} + +/**************************************************************** +Sort function for ulint arrays. */ + +void +ut_ulint_sort(ulint* arr, ulint* aux_arr, ulint low, ulint high) +/*============================================================*/ +{ + UT_SORT_FUNCTION_BODY(ut_ulint_sort, arr, aux_arr, low, high, + ut_ulint_cmp); +} |