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Trivial updates from review of vecto I/O logic.

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This commit is contained in:
Gregory Nutt
2018-06-23 09:01:42 -06:00
parent 706a6a2c19
commit 5db2f993f9
5 changed files with 76 additions and 33 deletions
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include/limits.h
+12 -3
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@@ -134,13 +134,19 @@
#ifdef CONFIG_SMALL_MEMORY
#define _POSIX_SSIZE_MAX 32767 /* See sys/types.h */
#define _POSIX_SIZE_MAX 65535 /* See sys/types.h */
#define _POSIX_SIZE_MIN 0
#define _POSIX_SSIZE_MAX 32767 /* See sys/types.h */
#define _POSIX_SSIZE_MIN -32768
#else /* CONFIG_SMALL_MEMORY */
#define _POSIX_SSIZE_MAX 2147483647 /* See sys/types.h */
#define _POSIX_SSIZE_MIN -2147483648
#define _POSIX_SIZE_MAX 4294967295L /* See sys/types.h */
#define _POSIX_SIZE_MIN 0
#define _POSIX_SSIZE_MAX 2147483647UL /* See sys/types.h */
#define _POSIX_SSIZE_MIN -2147483648UL
#endif /* CONFIG_SMALL_MEMORY */
@@ -205,6 +211,8 @@
#define OPEN_MAX _POSIX_OPEN_MAX
#define PATH_MAX _POSIX_PATH_MAX
#define PIPE_BUF _POSIX_PIPE_BUF
#define SIZE_MAX _POSIX_SIZE_MAX
#define SIZE_MIN _POSIX_SIZE_MIN
#define SSIZE_MAX _POSIX_SSIZE_MAX
#define SSIZE_MIN _POSIX_SSIZE_MIN
#define STREAM_MAX _POSIX_STREAM_MAX
@@ -237,6 +245,7 @@
#define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
/* Required for readv() and writev() */
/* There really is no upper limit on the number of vectors */
#define IOV_MAX INT_MAX