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Code Block
languagecpp
void  fs_flockfile (FS_FILE  *p_file);

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1109765
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File
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Called from
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Code enabled by
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fs_api
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.c
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Application
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FS_CFG_API_EN and FS_CFG_FILE_LOCK_EN
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10919291091929Acquire task ownership of a file. Anchor11046111104611
Arguments
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1108444p_fileanchor11405601140560
Pointer to a file.
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Returned Value
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1091933None. Anchor11000091100009
Notes/Warnings
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  1. A lock count is associated with each file:
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    1. ...
        1. The file is unlocked when the lock count is zero.
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        2. If the lock count is positive, a task owns the file.
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        1. When fs_flockfile() is called, if…
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          1. …the lock count is zero OR
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          1. …the lock count is positive and the caller owns the file…
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          1. …the lock count will be incremented and the caller will own the file. Otherwise, the caller will wait until the lock count returns to zero.
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        2. Each call to fs_funlockfile() incremenets the lock count.
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        2. Matching calls to fs_flockfile() (or fs_ftrylockfile()) and fs_funlockfile() can be nested.