cosmopolitan/third_party/dlmalloc/README.cosmo

DESCRIPTION

  malloc-2.8.6
  written by Doug Lea

LICENSE

  http://creativecommons.org/publicdomain/zero/1.0/

LOCAL CHANGES

  - Use faster two power roundup for memalign()
  - Poison maps to integrate with Address Sanitizer
  - Introduce __oom_hook() by using _mapanon() vs. mmap()
  - Wrap locks with __threaded check to improve perf lots
Improve synchronization - Fix bugs in kDos2Errno definition - malloc() should now be thread safe - Fix bug in rollup.com header generator - Fix open(O_APPEND) on the New Technology - Fix select() on the New Technology and test it - Work towards refactoring i/o for thread safety - Socket reads and writes on NT now poll for signals - Work towards i/o completion ports on the New Technology - Make read() and write() intermittently check for signals - Blinkenlights keyboard i/o so much better on NT w/ poll() - You can now poll() files and sockets at the same time on NT - Fix bug in appendr() that manifests with dlmalloc footers off 2022-04-15 06:39:48 +00:00			`DESCRIPTION`
Initial import 2020-06-15 14:18:57 +00:00
Improve synchronization - Fix bugs in kDos2Errno definition - malloc() should now be thread safe - Fix bug in rollup.com header generator - Fix open(O_APPEND) on the New Technology - Fix select() on the New Technology and test it - Work towards refactoring i/o for thread safety - Socket reads and writes on NT now poll for signals - Work towards i/o completion ports on the New Technology - Make read() and write() intermittently check for signals - Blinkenlights keyboard i/o so much better on NT w/ poll() - You can now poll() files and sockets at the same time on NT - Fix bug in appendr() that manifests with dlmalloc footers off 2022-04-15 06:39:48 +00:00			`malloc-2.8.6`
			`written by Doug Lea`
Initial import 2020-06-15 14:18:57 +00:00
Improve synchronization - Fix bugs in kDos2Errno definition - malloc() should now be thread safe - Fix bug in rollup.com header generator - Fix open(O_APPEND) on the New Technology - Fix select() on the New Technology and test it - Work towards refactoring i/o for thread safety - Socket reads and writes on NT now poll for signals - Work towards i/o completion ports on the New Technology - Make read() and write() intermittently check for signals - Blinkenlights keyboard i/o so much better on NT w/ poll() - You can now poll() files and sockets at the same time on NT - Fix bug in appendr() that manifests with dlmalloc footers off 2022-04-15 06:39:48 +00:00			`LICENSE`
Make fixes, improvements, and chibicc python bindings - python now mixes audio 10x faster - python octal notation is restored - chibicc now builds code 3x faster - chibicc now has help documentation - chibicc can now generate basic python bindings - linenoise now supports some paredit-like features See #141 2021-10-08 15:11:51 +00:00
Improve synchronization - Fix bugs in kDos2Errno definition - malloc() should now be thread safe - Fix bug in rollup.com header generator - Fix open(O_APPEND) on the New Technology - Fix select() on the New Technology and test it - Work towards refactoring i/o for thread safety - Socket reads and writes on NT now poll for signals - Work towards i/o completion ports on the New Technology - Make read() and write() intermittently check for signals - Blinkenlights keyboard i/o so much better on NT w/ poll() - You can now poll() files and sockets at the same time on NT - Fix bug in appendr() that manifests with dlmalloc footers off 2022-04-15 06:39:48 +00:00			`http://creativecommons.org/publicdomain/zero/1.0/`
Make fixes, improvements, and chibicc python bindings - python now mixes audio 10x faster - python octal notation is restored - chibicc now builds code 3x faster - chibicc now has help documentation - chibicc can now generate basic python bindings - linenoise now supports some paredit-like features See #141 2021-10-08 15:11:51 +00:00
Improve synchronization - Fix bugs in kDos2Errno definition - malloc() should now be thread safe - Fix bug in rollup.com header generator - Fix open(O_APPEND) on the New Technology - Fix select() on the New Technology and test it - Work towards refactoring i/o for thread safety - Socket reads and writes on NT now poll for signals - Work towards i/o completion ports on the New Technology - Make read() and write() intermittently check for signals - Blinkenlights keyboard i/o so much better on NT w/ poll() - You can now poll() files and sockets at the same time on NT - Fix bug in appendr() that manifests with dlmalloc footers off 2022-04-15 06:39:48 +00:00			`LOCAL CHANGES`
Make fixes, improvements, and chibicc python bindings - python now mixes audio 10x faster - python octal notation is restored - chibicc now builds code 3x faster - chibicc now has help documentation - chibicc can now generate basic python bindings - linenoise now supports some paredit-like features See #141 2021-10-08 15:11:51 +00:00
Always initialize thread local storage We had previously not enabled TLS in MODE=tiny in order to keep the smallest example programs (e.g. life.com) just 16kb in size. But it was error prone doing that, so now we just always enable it because this change uses hacks to ensure it won't increase life.com's size. This change also fixes a bug on NetBSD, where signal handlers would break thread local storage if SA_SIGINFO was being used. This looks like it might be a bug in NetBSD, but it's got a simple workaround. 2022-07-19 05:26:11 +00:00			`- Use faster two power roundup for memalign()`
			`- Poison maps to integrate with Address Sanitizer`
			`- Introduce __oom_hook() by using _mapanon() vs. mmap()`
			`- Wrap locks with __threaded check to improve perf lots`