VARCem/PDCurses
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debug: hold trace file open while trace is enabled

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this gives a substantial increase in responsiveness during
traceon sessions compared to opening and closing the file
for every log line
This commit is contained in:
ellie timoney
2017-10-23 00:50:02 +11:00
committed by William McBrine
parent 209089a594
commit 01aedfcba6
2 changed files with 25 additions and 24 deletions
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4
curspriv.h
View File

@@ -50,7 +50,7 @@ typedef struct /* structure for ripped off lines */
#define _DLCHAR 0x15 /* Delete Line char (^U) */
extern WINDOW *pdc_lastscr;
extern bool pdc_trace_on; /* tracing flag */
extern FILE *pdc_dbfp; /* tracing file pointer (NULL = off) */
extern bool pdc_color_started;
extern unsigned long pdc_key_modifiers;
extern MOUSE_STATUS pdc_mouse_status;
@@ -105,7 +105,7 @@ size_t PDC_wcstombs(char *, const wchar_t *, size_t);
#endif
#ifdef PDCDEBUG
# define PDC_LOG(x) if (pdc_trace_on) PDC_debug x
# define PDC_LOG(x) if (pdc_dbfp) PDC_debug x
#else
# define PDC_LOG(x)
#endif

45
pdcurses/debug.c
View File

@@ -35,49 +35,50 @@ debug
#include <sys/types.h>
#include <time.h>
bool pdc_trace_on = FALSE;
FILE *pdc_dbfp = NULL;
void PDC_debug(const char *fmt, ...)
{
va_list args;
FILE *dbfp;
char hms[9];
time_t now;
if (!pdc_trace_on)
if (!pdc_dbfp)
return;
/* open debug log file append */
time(&now);
strftime(hms, 9, "%H:%M:%S", localtime(&now));
fprintf(pdc_dbfp, "At: %8.8ld - %s ", (long) clock(), hms);
dbfp = fopen("trace", "a");
if (!dbfp)
va_start(args, fmt);
vfprintf(pdc_dbfp, fmt, args);
va_end(args);
}
void traceon(void)
{
if (pdc_dbfp)
fclose(pdc_dbfp);
/* open debug log file append */
pdc_dbfp = fopen("trace", "a");
if (!pdc_dbfp)
{
fprintf(stderr,
"PDC_debug(): Unable to open debug log file\n");
return;
}
time(&now);
strftime(hms, 9, "%H:%M:%S", localtime(&now));
fprintf(dbfp, "At: %8.8ld - %s ", (long) clock(), hms);
va_start(args, fmt);
vfprintf(dbfp, fmt, args);
va_end(args);
fclose(dbfp);
}
void traceon(void)
{
pdc_trace_on = TRUE;
PDC_LOG(("traceon() - called\n"));
}
void traceoff(void)
{
if (!pdc_dbfp)
return;
PDC_LOG(("traceoff() - called\n"));
pdc_trace_on = FALSE;
fclose(pdc_dbfp);
pdc_dbfp = NULL;
}