%% options copyright owner = Dirk Krause copyright year = 2015-xxxx license = bsd %% header /** @file File related timestamps (timestamp comparison, converstion to text. */ #ifndef DK4CONF_H_INCLUDED #include "dk4conf.h" #endif #ifndef DK4TYPES_H_INCLUDED #include "dk4types.h" #endif #ifndef DK4ERROR_H_INCLUDED #include "dk4error.h" #endif #ifndef DK4TIMEC_H_INCLUDED #include "dk4timec.h" #endif #if DK4_ON_WINDOWS #ifndef WINDOWS_H_INCLUDED #include #define WINDOWS_H_INCLUDED 1 #endif #else #if DK4_HAVE_SYS_TYPES_H #ifndef SYS_TYPES_H_INCLUDED #include #define SYS_TYPES_H_INCLUDED 1 #endif #endif #if DK4_TIME_WITH_SYS_TIME #ifndef SYS_TIME_H_INCLUDED #include #define SYS_TIME_H_INCLUDED 1 #endif #ifndef TIME_H_INCLUDED #include #define TIME_H_INCLUDED 1 #endif #else #if DK4_HAVE_TIME_H #ifndef TIME_H_INCLUDED #include #define TIME_H_INCLUDED 1 #endif #else #if DK4_HAVE_SYS_TIME_H #ifndef SYS_TIME_H_INCLUDED #include #define SYS_TIME_H_INCLUDED 1 #endif #endif #endif #endif #ifndef DK4TIME_H_INCLUDED #include "dk4time.h" #endif #endif #if DK4_ON_WINDOWS /** File related timestamp. */ typedef FILETIME dk4_file_time_t; #else /** File related timestamp. */ typedef dk4_time_t dk4_file_time_t; #endif #ifdef __cplusplus extern "C" { #endif /** Compare two timestamps. CRT on Windows: Not used. @param l Left timestamp. @param r Right timestamp. @return 1 if l>r, 0 if l=r, -1 if l if dptr or fit is NULL or dsz is 0, - DK4_E_MATH_OVERFLOW
if a mathematical overflow occures in a size calculation, - DK4_E_BUFFER_TOO_SMALL
if the buffer is too small, - DK4_E_BUG
if CRT or Windows API functions failed to convert the timestamp to local time information. */ int dk4filetime_to_text_c8( char *dptr, size_t dsz, const dk4_file_time_t *fit, dk4_er_t *erp ); /** Convert timestamp to text ``yyyy-mm-dd hh:mm:ss''. CRT on Windows: Optional. @param dptr Result buffer address. @param dsz Result buffer size (number of dkChar). @param fit Timestamp to convert. @param erp Error report, may be NULL. @return 1 on success, 0 on error. Error codes: - DK4_E_INVALID_ARGUMENTS
if dptr or fit is NULL or dsz is 0, - DK4_E_MATH_OVERFLOW
if a mathematical overflow occures in a size calculation, - DK4_E_BUFFER_TOO_SMALL
if the buffer is too small, - DK4_E_BUG
if CRT or Windows API functions failed to convert the timestamp to local time information. */ int dk4filetime_to_text_wc( wchar_t *dptr, size_t dsz, const dk4_file_time_t *fit, dk4_er_t *erp ); /** Convert timestamp to text ``yyyy-mm-dd hh:mm:ss''. CRT on Windows: Optional. @param dptr Result buffer address. @param dsz Result buffer size (number of dkChar). @param fit Timestamp to convert. @param erp Error report, may be NULL. @return 1 on success, 0 on error. Error codes: - DK4_E_INVALID_ARGUMENTS
if dptr or fit is NULL or dsz is 0, - DK4_E_MATH_OVERFLOW
if a mathematical overflow occures in a size calculation, - DK4_E_BUFFER_TOO_SMALL
if the buffer is too small, - DK4_E_BUG
if CRT or Windows API functions failed to convert the timestamp to local time information. */ int dk4filetime_to_text( dkChar *dptr, size_t dsz, const dk4_file_time_t *fit, dk4_er_t *erp ); #ifdef __cplusplus } #endif %% module #include "dk4ftime.h" #if !DK4_ON_WINDOWS #include "dk4timedk.h" #endif int dk4filetime_compare(const dk4_file_time_t *l, const dk4_file_time_t *r) { int back = 0; if (NULL != l) { if (NULL != r) { #if DK4_ON_WINDOWS if (l->dwHighDateTime > r->dwHighDateTime) { back = 1; } else { if (l->dwHighDateTime < r->dwHighDateTime) { back = -1; } else { if (l->dwLowDateTime > r->dwLowDateTime) { back = 1; } else { if (l->dwLowDateTime < r->dwLowDateTime) { back = -1; } } } } #else if (*l > *r) { back = 1; } else { if (*l < *r) { back = -1; } } #endif } else { back = 1; } } else { if (NULL != r) { back = -1; } } return back; }