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initial attempt to "replay" log entries

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starfrost013
2025-01-12 00:58:43 +00:00
parent 543487be43
commit 2cd01db878
1 changed files with 24 additions and 9 deletions
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33
src/86box.c
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@@ -254,12 +254,12 @@ static volatile atomic_int pause_ack = 0;
#ifndef RELEASE_BUILD
#define LOG_SIZE_BUFFER 1024 /* Log size buffer */
#define LOG_SIZE_BUFFER_CYCLIC 32 /* Cyclic log size buffer (number of lines that should be cehcked) */
#define LOG_MINIMUM_REPEAT_ORDER 4 /* Minimum repeat size */
#define LOG_SIZE_BUFFER 1024 /* Log size buffer */
#define LOG_SIZE_BUFFER_CYCLIC_LINES 32 /* Cyclic log size buffer (number of lines that should be cehcked) */
#define LOG_MINIMUM_REPEAT_ORDER 4 /* Minimum repeat size */
static char buff[LOG_SIZE_BUFFER];
static char cyclic_buff[LOG_SIZE_BUFFER_CYCLIC][LOG_SIZE_BUFFER];
static char cyclic_buff[LOG_SIZE_BUFFER_CYCLIC_LINES][LOG_SIZE_BUFFER];
static int32_t cyclic_last_line = 0;
static int32_t log_cycles = 0;
@@ -333,7 +333,7 @@ pclog_ex_cyclic(const char* fmt, va_list ap)
#ifndef RELEASE_BUILD
char temp[LOG_SIZE_BUFFER];
cyclic_last_line %= LOG_SIZE_BUFFER_CYCLIC;
cyclic_last_line %= LOG_SIZE_BUFFER_CYCLIC_LINES;
vsprintf(temp, fmt, ap);
@@ -341,7 +341,7 @@ pclog_ex_cyclic(const char* fmt, va_list ap)
strncpy(cyclic_buff[cyclic_last_line], temp, LOG_SIZE_BUFFER);
uint32_t hashes[LOG_SIZE_BUFFER_CYCLIC] = {0};
uint32_t hashes[LOG_SIZE_BUFFER_CYCLIC_LINES] = {0};
// Random numbers
uint32_t base = 257;
@@ -351,7 +351,7 @@ pclog_ex_cyclic(const char* fmt, va_list ap)
bool is_cycle = false;
// compute the set of hashes for the current log buffer
for (int32_t log_line = 0; log_line < LOG_SIZE_BUFFER_CYCLIC; log_line++)
for (int32_t log_line = 0; log_line < LOG_SIZE_BUFFER_CYCLIC_LINES; log_line++)
{
if (cyclic_buff[log_line][0] == '\0')
continue; // skip
@@ -365,13 +365,13 @@ pclog_ex_cyclic(const char* fmt, va_list ap)
// Now see if there are real cycles...
// We implement a minimum repeat size.
for (int32_t check_size = LOG_MINIMUM_REPEAT_ORDER; check_size < LOG_SIZE_BUFFER_CYCLIC / 2; check_size++)
for (int32_t check_size = LOG_MINIMUM_REPEAT_ORDER; check_size < LOG_SIZE_BUFFER_CYCLIC_LINES / 2; check_size++)
{
//TODO: Log what we need for cycle 1.
//TODO: Command line option that lets us turn off this behaviour.
for (int32_t log_line_to_check = 0; log_line_to_check < check_size; log_line_to_check++)
{
if (hashes[log_line_to_check] == hashes[(log_line_to_check + check_size) % LOG_SIZE_BUFFER_CYCLIC])
if (hashes[log_line_to_check] == hashes[(log_line_to_check + check_size) % LOG_SIZE_BUFFER_CYCLIC_LINES])
{
repeat_order = check_size;
break;
@@ -393,7 +393,22 @@ pclog_ex_cyclic(const char* fmt, va_list ap)
log_cycles++;
if (log_cycles == 1)
{
// 'Replay' the last few log entries so they actually show up
// Todo: is this right?
for (uint32_t index = cyclic_last_line - 1; index > (cyclic_last_line - repeat_order); cyclic_last_line--)
{
// *very important* to prevent out of bounds index
uint32_t real_index = index % LOG_SIZE_BUFFER_CYCLIC_LINES;
fprintf(stdlog, "%s", temp);
}
fprintf(stdlog, "%s", temp); // allow normal logging
}
if (log_cycles > 1 && log_cycles < 100)
fprintf(stdlog, "***** Cyclical Log Repeat of Order %d #%d *****\n", repeat_order, log_cycles);
else if (log_cycles == 100)