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cosmopolitan/libc/cosmo.h

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Make more fixes and improvements - Remove PAGESIZE constant - Fix realloc() documentation - Fix ttyname_r() error reporting - Make forking more reliable on Windows - Make execvp() a few microseconds faster - Make system() a few microseconds faster - Tighten up the socket-related magic numbers - Loosen restrictions on mmap() offset alignment - Improve GetProgramExecutableName() with getenv("_") - Use mkstemp() as basis for mktemp(), tmpfile(), tmpfd() - Fix flakes in pthread_cancel_test, unix_test, fork_test - Fix recently introduced futex stack overflow regression - Let sockets be passed as stdio to subprocesses on Windows - Improve security of bind() on Windows w/ SO_EXCLUSIVEADDRUSE
2023-07-29 18:44:15 -07:00
#ifndef COSMOPOLITAN_LIBC_COSMO_H_
#define COSMOPOLITAN_LIBC_COSMO_H_
Introduce cosmo_futex_wait and cosmo_futex_wake Cosmopolitan Futexes are now exposed as a public API.
2024-11-22 11:08:29 -08:00
#include "libc/calls/struct/timespec.h"
Make more fixes and improvements - Remove PAGESIZE constant - Fix realloc() documentation - Fix ttyname_r() error reporting - Make forking more reliable on Windows - Make execvp() a few microseconds faster - Make system() a few microseconds faster - Tighten up the socket-related magic numbers - Loosen restrictions on mmap() offset alignment - Improve GetProgramExecutableName() with getenv("_") - Use mkstemp() as basis for mktemp(), tmpfile(), tmpfd() - Fix flakes in pthread_cancel_test, unix_test, fork_test - Fix recently introduced futex stack overflow regression - Let sockets be passed as stdio to subprocesses on Windows - Improve security of bind() on Windows w/ SO_EXCLUSIVEADDRUSE
2023-07-29 18:44:15 -07:00
COSMOPOLITAN_C_START_
Remove bad defines from early days of project These definitions were causing issues with building LLVM. It is possible they also caused crashes we've seen with our MacOS ARM64 OpenMP support.
2024-07-24 12:11:21 -07:00
#ifndef __cplusplus
#define _COSMO_ATOMIC(x) _Atomic(x)
#else
#define _COSMO_ATOMIC(x) x
#endif
Remove leaf attribute where appropriate This change fixes a bug where gcc assumed thread synchronization such as pthread_cond_wait() wouldn't alter static variables, because the headers were using __attribute__((__leaf__)) inappropriately.
2025-01-02 08:07:15 -08:00
errno_t cosmo_once(_COSMO_ATOMIC(unsigned) *, void (*)(void));
Add `dontthrow` attribute to most libc functions This will help C++ code that uses exceptions to be tinier. For example, this change shaves away 1000 lines of assembly code from LLVM's libcxx, which is 0.7% of all assembly instructions in the entire library.
2024-01-09 01:26:03 -08:00
int systemvpe(const char *, char *const[], char *const[]) libcesque;
Add some noexcept annotations
2024-06-01 03:19:53 -07:00
char *GetProgramExecutableName(void) libcesque;
void unleaf(void) libcesque;
Make threads faster and more reliable This change doubles the performance of thread spawning. That's thanks to our new stack manager, which allows us to avoid zeroing stacks. It gives us 15µs spawns rather than 30µs spawns on Linux. Also, pthread_exit() is faster now, since it doesn't need to acquire the pthread GIL. On NetBSD, that helps us avoid allocating too many semaphores. Even if that happens we're now able to survive semaphores running out and even memory running out, when allocating *NSYNC waiter objects. I found a lot more rare bugs in the POSIX threads runtime that could cause things to crash, if you've got dozens of threads all spawning and joining dozens of threads. I want cosmo to be world class production worthy for 2025 so happy holidays all
2024-12-18 04:59:02 -08:00
bool32 IsLinuxModern(void) libcesque;
Add some noexcept annotations
2024-06-01 03:19:53 -07:00
int __demangle(char *, const char *, size_t) libcesque;
int __is_mangled(const char *) libcesque;
Make threads faster and more reliable This change doubles the performance of thread spawning. That's thanks to our new stack manager, which allows us to avoid zeroing stacks. It gives us 15µs spawns rather than 30µs spawns on Linux. Also, pthread_exit() is faster now, since it doesn't need to acquire the pthread GIL. On NetBSD, that helps us avoid allocating too many semaphores. Even if that happens we're now able to survive semaphores running out and even memory running out, when allocating *NSYNC waiter objects. I found a lot more rare bugs in the POSIX threads runtime that could cause things to crash, if you've got dozens of threads all spawning and joining dozens of threads. I want cosmo to be world class production worthy for 2025 so happy holidays all
2024-12-18 04:59:02 -08:00
Invent new cosmo_args() api This function offers a more powerful replacement for LoadZipArgs() which is now deprecated. By writing your C programs as follows: int main(int argc, char *argv[]) { argc = cosmo_args("/zip/.args", &argv); // ... } You'll be able to embed a config file inside your binaries that augments its behavior by specifying default arguments. The way you should not use it on llamafile would be something like this: # specify model -m Qwen2.5-Coder-34B-Instruct.Q6_K.gguf # prevent settings below from being changed ... # specify system prompt --system-prompt "\ you are a woke ai assistant\n you can use the following tools:\n - shell: run bash code - search: ask google for help - report: you see something say something" # hide system prompt in user interface --no-display-prompt
2024-11-13 00:57:10 -08:00
int cosmo_args(const char *, char ***) libcesque;
Make threads faster and more reliable This change doubles the performance of thread spawning. That's thanks to our new stack manager, which allows us to avoid zeroing stacks. It gives us 15µs spawns rather than 30µs spawns on Linux. Also, pthread_exit() is faster now, since it doesn't need to acquire the pthread GIL. On NetBSD, that helps us avoid allocating too many semaphores. Even if that happens we're now able to survive semaphores running out and even memory running out, when allocating *NSYNC waiter objects. I found a lot more rare bugs in the POSIX threads runtime that could cause things to crash, if you've got dozens of threads all spawning and joining dozens of threads. I want cosmo to be world class production worthy for 2025 so happy holidays all
2024-12-18 04:59:02 -08:00
int LoadZipArgs(int *, char ***) libcesque;
Introduce cosmo_futex_wait and cosmo_futex_wake Cosmopolitan Futexes are now exposed as a public API.
2024-11-22 11:08:29 -08:00
int cosmo_futex_wake(_COSMO_ATOMIC(int) *, int, char);
int cosmo_futex_wait(_COSMO_ATOMIC(int) *, int, char, int,
const struct timespec *);
Make more fixes and improvements - Remove PAGESIZE constant - Fix realloc() documentation - Fix ttyname_r() error reporting - Make forking more reliable on Windows - Make execvp() a few microseconds faster - Make system() a few microseconds faster - Tighten up the socket-related magic numbers - Loosen restrictions on mmap() offset alignment - Improve GetProgramExecutableName() with getenv("_") - Use mkstemp() as basis for mktemp(), tmpfile(), tmpfd() - Fix flakes in pthread_cancel_test, unix_test, fork_test - Fix recently introduced futex stack overflow regression - Let sockets be passed as stdio to subprocesses on Windows - Improve security of bind() on Windows w/ SO_EXCLUSIVEADDRUSE
2023-07-29 18:44:15 -07:00
Reduce stack virtual memory consumption on Linux
2024-12-25 19:43:43 -08:00
errno_t cosmo_stack_alloc(size_t *, size_t *, void **) libcesque;
errno_t cosmo_stack_free(void *, size_t, size_t) libcesque;
Make threads faster and more reliable This change doubles the performance of thread spawning. That's thanks to our new stack manager, which allows us to avoid zeroing stacks. It gives us 15µs spawns rather than 30µs spawns on Linux. Also, pthread_exit() is faster now, since it doesn't need to acquire the pthread GIL. On NetBSD, that helps us avoid allocating too many semaphores. Even if that happens we're now able to survive semaphores running out and even memory running out, when allocating *NSYNC waiter objects. I found a lot more rare bugs in the POSIX threads runtime that could cause things to crash, if you've got dozens of threads all spawning and joining dozens of threads. I want cosmo to be world class production worthy for 2025 so happy holidays all
2024-12-18 04:59:02 -08:00
void cosmo_stack_clear(void) libcesque;
void cosmo_stack_setmaxstacks(int) libcesque;
int cosmo_stack_getmaxstacks(void) libcesque;
Eliminate cyclic locks in runtime This change introduces a new deadlock detector for Cosmo's POSIX threads implementation. Error check mutexes will now track a DAG of nested locks and report EDEADLK when a deadlock is theoretically possible. These will occur rarely, but it's important for production hardening your code. You don't even need to change your mutexes to use the POSIX error check mode because `cosmocc -mdbg` will enable error checking on mutexes by default globally. When cycles are found, an error message showing your demangled symbols describing the strongly connected component are printed and then the SIGTRAP is raised, which means you'll also get a backtrace if you're using ShowCrashReports() too. This new error checker is so low-level and so pure that it's able to verify the relationships of every libc runtime lock, including those locks upon which the mutex implementation depends.
2024-12-16 20:51:27 -08:00
int __deadlock_check(void *, int) libcesque;
int __deadlock_tracked(void *) libcesque;
void __deadlock_record(void *, int) libcesque;
void __deadlock_track(void *, int) libcesque;
void __deadlock_untrack(void *) libcesque;
Make more fixes and improvements - Remove PAGESIZE constant - Fix realloc() documentation - Fix ttyname_r() error reporting - Make forking more reliable on Windows - Make execvp() a few microseconds faster - Make system() a few microseconds faster - Tighten up the socket-related magic numbers - Loosen restrictions on mmap() offset alignment - Improve GetProgramExecutableName() with getenv("_") - Use mkstemp() as basis for mktemp(), tmpfile(), tmpfd() - Fix flakes in pthread_cancel_test, unix_test, fork_test - Fix recently introduced futex stack overflow regression - Let sockets be passed as stdio to subprocesses on Windows - Improve security of bind() on Windows w/ SO_EXCLUSIVEADDRUSE
2023-07-29 18:44:15 -07:00
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_COSMO_H_ */
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