Changeset 45c8eea in mainline for uspace/lib/c/generic/io/kio.c


Ignore:
Timestamp:
2018-11-11T15:47:39Z (5 years ago)
Author:
Jakub Jermar <jakub@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
f4cb6c5f
Parents:
269bc459
git-author:
Jakub Jermar <jakub@…> (2018-11-10 17:49:44)
git-committer:
Jakub Jermar <jakub@…> (2018-11-11 15:47:39)
Message:

Preallocate waitq handle during initialization

Do not clutter futex_down_composable() with the preallocation of the
wait queue handle and do it single-threadedly in futex_initialize().

File:
1 edited

Legend:

Unmodified
Added
Removed
  • uspace/lib/c/generic/io/kio.c

    r269bc459 r45c8eea  
    3838#include <str.h>
    3939#include <stdint.h>
     40#include <stdlib.h>
    4041#include <errno.h>
    4142#include <abi/kio.h>
     
    5354        char data[KIO_BUFFER_SIZE];
    5455        size_t used;
    55 } kio_buffer = { .futex = FUTEX_INITIALIZER, };
     56} kio_buffer;
     57
     58void __kio_init(void)
     59{
     60        if (futex_initialize(&kio_buffer.futex, 1) != EOK)
     61                abort();
     62}
    5663
    5764errno_t kio_write(const void *buf, size_t size, size_t *nwritten)
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