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util/nvmutil: configurable eintr/eagain

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Signed-off-by: Leah Rowe <leah@libreboot.org>
This commit is contained in:
Leah Rowe
2026-03-14 16:04:56 +00:00
parent c33e60531a
commit 3efa7754cd
1 changed files with 18 additions and 5 deletions
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23
util/nvmutil/nvmutil.c
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@@ -16,6 +16,8 @@
*/
/*
* I/O config (build-time)
*
* Regarding:
* Retries on zero-return.
*
@@ -33,14 +35,27 @@
#ifndef MAX_ZERO_RW_RETRY
#define MAX_ZERO_RW_RETRY 10
#endif
/*
* 0: portable pread/pwrite
* 1: real pread/pwrite (thread-safe)
* Pass this at build-time
*/
#ifndef HAVE_REAL_PREAD_PWRITE
#define HAVE_REAL_PREAD_PWRITE 0
#endif
/*
* Configure whether to wait on
* EINTR on files, or EAGAIN on
* cmd cat (stdout).
*
* Pass these at build time.
*/
#ifndef LOOP_EAGAIN
#define LOOP_EAGAIN 1
#endif
#ifndef LOOP_EINTR
#define LOOP_EINTR 1
#endif
/*
* Major TODO: split this into multiple files.
@@ -473,9 +488,7 @@ static const char *argv0;
#define ARGC_4 4
#define NO_LOOP_EAGAIN 0
#define LOOP_EAGAIN 1
#define NO_LOOP_EINTR 0
#define LOOP_EINTR 1
enum {
IO_READ,
@@ -636,8 +649,8 @@ typedef char bool_skip_checksum_write[(SKIP_CHECKSUM_WRITE==0)?1:-1];
typedef char bool_checksum_write[(CHECKSUM_WRITE==1)?1:-1];
typedef char bool_no_invert[(NO_INVERT==0)?1:-1];
typedef char bool_part_invert[(PART_INVERT==1)?1:-1];
typedef char bool_loop_eintr[(LOOP_EINTR==1)?1:-1];
typedef char bool_loop_eagain[(LOOP_EAGAIN==1)?1:-1];
typedef char bool_loop_eintr[(LOOP_EINTR==1||LOOP_EINTR==0)?1:-1];
typedef char bool_loop_eagain[(LOOP_EAGAIN==1||LOOP_EAGAIN==0)?1:-1];
typedef char bool_no_loop_eintr[(NO_LOOP_EINTR==0)?1:-1];
typedef char bool_no_loop_eagain[(NO_LOOP_EAGAIN==0)?1:-1];