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cosmopolitan/libc/stdio/fflush.internal.h

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Work towards improving signals and processes
2021-01-28 03:34:02 +00:00
#ifndef COSMOPOLITAN_LIBC_STDIO_FFLUSH_H_
#define COSMOPOLITAN_LIBC_STDIO_FFLUSH_H_
Remove stdio lock macros from amalgamation
2022-09-10 18:55:39 +00:00
#include "libc/intrin/nopl.internal.h"
Work towards improving signals and processes
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#include "libc/stdio/stdio.h"
Fix corner case in Linux stack mappings We need to make sure no existing mappings exist between the MAP_GROWSDOWN page and the guard page, since otherwise it's not going to be able to grow down thus causing difficult to troubleshoot failures.
2022-10-03 20:43:52 +00:00
#include "libc/thread/thread.h"
#include "libc/thread/tls.h"
Work towards improving signals and processes
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
struct StdioFlushHandles {
size_t i, n;
FILE **p;
};
struct StdioFlush {
struct StdioFlushHandles handles;
FILE *handles_initmem[8];
};
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.
2022-05-14 11:33:58 +00:00
hidden extern struct StdioFlush __fflush;
Make system() and popen() thread safe
2022-10-13 22:38:31 +00:00
hidden extern pthread_mutex_t __fflush_lock_obj;
Work towards improving signals and processes
2021-01-28 03:34:02 +00:00
Apply even more fixups - Finish cleaning up the stdio unlocked APIs - Make __cxa_finalize() properly thread safe - Don't log locks if threads aren't being used - Add some more mutex guards to places using _mmi - Specific lock names now appear in the --ftrace logs - Fix mkdeps.com generating invalid Makefiles sometimes - Simplify and fix bugs in the test runner infrastructure - Fix issue where sometimes some functions wouldn't be logged
2022-06-12 18:47:20 +00:00
void __fflush_lock(void);
void __fflush_unlock(void);
Make mutex calling code 10x tinier Calls to lock/unlock functions are now NOPs by default. The first time clone() is called, they get turned into CALL instructions. Doing this caused funcctions like fputc() to shrink from 85 bytes to 45+4 bytes. Since the ANSI solution of `(__threaded && lock())` inlines os much superfluous binary content into functions all over the place.
2022-06-13 02:33:42 +00:00
Make some quick fixes and cleanup
2022-06-26 09:58:36 +00:00
#ifdef _NOPL0
Make mutex calling code 10x tinier Calls to lock/unlock functions are now NOPs by default. The first time clone() is called, they get turned into CALL instructions. Doing this caused funcctions like fputc() to shrink from 85 bytes to 45+4 bytes. Since the ANSI solution of `(__threaded && lock())` inlines os much superfluous binary content into functions all over the place.
2022-06-13 02:33:42 +00:00
#define __fflush_lock() _NOPL0("__threadcalls", __fflush_lock)
#define __fflush_unlock() _NOPL0("__threadcalls", __fflush_unlock)
#else
Apply even more fixups - Finish cleaning up the stdio unlocked APIs - Make __cxa_finalize() properly thread safe - Don't log locks if threads aren't being used - Add some more mutex guards to places using _mmi - Specific lock names now appear in the --ftrace logs - Fix mkdeps.com generating invalid Makefiles sometimes - Simplify and fix bugs in the test runner infrastructure - Fix issue where sometimes some functions wouldn't be logged
2022-06-12 18:47:20 +00:00
#define __fflush_lock() (__threaded ? __fflush_lock() : 0)
#define __fflush_unlock() (__threaded ? __fflush_unlock() : 0)
Make mutex calling code 10x tinier Calls to lock/unlock functions are now NOPs by default. The first time clone() is called, they get turned into CALL instructions. Doing this caused funcctions like fputc() to shrink from 85 bytes to 45+4 bytes. Since the ANSI solution of `(__threaded && lock())` inlines os much superfluous binary content into functions all over the place.
2022-06-13 02:33:42 +00:00
#endif
Apply even more fixups - Finish cleaning up the stdio unlocked APIs - Make __cxa_finalize() properly thread safe - Don't log locks if threads aren't being used - Add some more mutex guards to places using _mmi - Specific lock names now appear in the --ftrace logs - Fix mkdeps.com generating invalid Makefiles sometimes - Simplify and fix bugs in the test runner infrastructure - Fix issue where sometimes some functions wouldn't be logged
2022-06-12 18:47:20 +00:00
Work towards improving signals and processes
2021-01-28 03:34:02 +00:00
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_STDIO_FFLUSH_H_ */
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