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https://github.com/jart/cosmopolitan.git
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Add raw memory visualization tool to redbean
This change introduces a `-W /dev/pts/1` flag to redbean. What it does is use the mincore() system call to create a dual-screen terminal display that lets you troubleshoot the virtual address space. This is useful since page faults are an important thing to consider when using a forking web server. Now we have a colorful visualization of which pages are going to fault and which ones are resident in memory. The memory monitor, if enabled, spawns as a thread that just outputs ANSI codes to the second terminal in a loop. In order to make this happen using the new clone() polyfill, stdio is now thread safe. This change also introduces some new demo pages to redbean. It also polishes the demos we already have, to look a bit nicer and more presentable for the upcoming release, with better explanations too.
This commit is contained in:
Justine Tunney
parent
578cb21591
commit
80b211e314
106 changed files with 1483 additions and 592 deletions
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@ -1,6 +1,7 @@
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#ifndef COSMOPOLITAN_LIBC_LOG_LOG_H_
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#define COSMOPOLITAN_LIBC_LOG_LOG_H_
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#include "libc/bits/likely.h"
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#include "libc/bits/weaken.h"
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#include "libc/calls/struct/rusage.h"
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#include "libc/calls/struct/sigset.h"
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#include "libc/calls/struct/winsize.h"
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@ -77,23 +78,24 @@ extern unsigned __log_level; /* log level for runtime check */
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// log a message with the specified log level (not checking if LOGGABLE)
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#define LOGF(LEVEL, FMT, ...) \
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do { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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flogf(LEVEL, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} while (0)
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// die with an error message without backtrace and debugger invocation
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#define DIEF(FMT, ...) \
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do { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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flogf(kLogError, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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if (weaken(__die)) weaken(__die)(); \
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exit(1); \
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unreachable; \
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} while (0)
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#define FATALF(FMT, ...) \
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do { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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ffatalf(kLogFatal, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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unreachable; \
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} while (0)
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@ -101,78 +103,78 @@ extern unsigned __log_level; /* log level for runtime check */
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#define ERRORF(FMT, ...) \
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do { \
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if (LOGGABLE(kLogError)) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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flogf(kLogError, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define WARNF(FMT, ...) \
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do { \
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if (LOGGABLE(kLogWarn)) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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flogf(kLogWarn, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define INFOF(FMT, ...) \
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do { \
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if (LOGGABLE(kLogInfo)) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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flogf(kLogInfo, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define VERBOSEF(FMT, ...) \
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do { \
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if (LOGGABLE(kLogVerbose)) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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fverbosef(kLogVerbose, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define DEBUGF(FMT, ...) \
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do { \
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if (UNLIKELY(LOGGABLE(kLogDebug))) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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fdebugf(kLogDebug, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define NOISEF(FMT, ...) \
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do { \
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if (UNLIKELY(LOGGABLE(kLogNoise))) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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fnoisef(kLogNoise, __FILE__, __LINE__, NULL, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define FLOGF(F, FMT, ...) \
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do { \
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if (LOGGABLE(kLogInfo)) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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flogf(kLogInfo, __FILE__, __LINE__, F, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define FWARNF(F, FMT, ...) \
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do { \
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if (LOGGABLE(kLogWarn)) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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flogf(kLogWarn, __FILE__, __LINE__, F, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define FFATALF(F, FMT, ...) \
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do { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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ffatalf(kLogFatal, __FILE__, __LINE__, F, FMT, ##__VA_ARGS__); \
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unreachable; \
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} while (0)
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@ -180,18 +182,18 @@ extern unsigned __log_level; /* log level for runtime check */
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#define FDEBUGF(F, FMT, ...) \
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do { \
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if (UNLIKELY(LOGGABLE(kLogDebug))) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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fdebugf(kLogDebug, __FILE__, __LINE__, F, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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#define FNOISEF(F, FMT, ...) \
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do { \
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if (UNLIKELY(LOGGABLE(kLogNoise))) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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fnoisef(kLogNoise, __FILE__, __LINE__, F, FMT, ##__VA_ARGS__); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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} \
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} while (0)
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@ -204,25 +206,25 @@ extern unsigned __log_level; /* log level for runtime check */
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int e = errno; \
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autotype(FORM) Ax = (FORM); \
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if (UNLIKELY(Ax == (typeof(Ax))(-1)) && LOGGABLE(kLogWarn)) { \
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--g_ftrace; \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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__logerrno(__FILE__, __LINE__, #FORM); \
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++g_ftrace; \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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errno = e; \
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} \
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Ax; \
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})
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#define LOGIFNULL(FORM) \
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({ \
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int e = errno; \
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autotype(FORM) Ax = (FORM); \
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if (Ax == NULL && LOGGABLE(kLogWarn)) { \
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--g_ftrace; \
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__logerrno(__FILE__, __LINE__, #FORM); \
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++g_ftrace; \
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errno = e; \
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} \
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Ax; \
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#define LOGIFNULL(FORM) \
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({ \
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int e = errno; \
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autotype(FORM) Ax = (FORM); \
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if (Ax == NULL && LOGGABLE(kLogWarn)) { \
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__atomic_fetch_sub(&g_ftrace, 1, __ATOMIC_RELAXED); \
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__logerrno(__FILE__, __LINE__, #FORM); \
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__atomic_fetch_add(&g_ftrace, 1, __ATOMIC_RELAXED); \
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errno = e; \
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} \
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Ax; \
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})
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/*───────────────────────────────────────────────────────────────────────────│─╗
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