45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
//---
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// util: Utility functions
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//---
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#ifndef FXOS_UTIL
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#define FXOS_UTIL
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/* integer(): Convert base 8, 10 or 16 into integers
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Prints an error message and sets *error to 1 in case of conversion error or
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overflow.
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@str Original integer representation ("10", "0x1f", "07")
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@error Set to 1 on error, otherwise unchanged (can be NULL)
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Returns result of conversion (valid if *error is not 1) */
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long long integer(const char *str, int *error);
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/* match_table_name(): Some specific matching on filenames
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Returns the table name to associate with the file located at @path for a
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table of type @type, with file suffix @suffix.
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Essentially if the basename of the file at @path is on the form
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{@type}-{x}{@suffix}
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then an malloc'ed copy of x is returned. Otherwise an malloc'ed copy of the
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basename is returned. */
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char *match_table_name(char const *path, char const *type, char const *suffix);
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/* map(): Map a file to memory
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Maps a file given by its path to memory, and return the associated region,
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a file descriptor and the size.
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@path File path
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@fd Will be set to fd of open file
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@size Will be set to file size
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Returns NULL no error, in which case the file is closed and [*fd] and
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[*size] are undefined; otherwise, returns a pointer to mapped data. */
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void *map(char const *path, int *fd, size_t *size);
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/* unmap(): Unmap a file loaded with map()
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@data Region returned by map()
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@fd File descriptor set by map()
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@size Size set by map() */
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void unmap(void *data, int fd, size_t size);
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#endif /* FXOS_UTIL */
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