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| author | Karel Zak | 2018-01-17 13:58:29 +0100 |
|---|---|---|
| committer | Karel Zak | 2018-01-17 13:58:29 +0100 |
| commit | a15dca2f6d0693546138a6a727f019dd8019dee8 (patch) | |
| tree | 4ca90e704fea0743180867f7ab7f0592672f8562 /include/debug.h | |
| parent | hwclock: rename --debug option to --verbose (diff) | |
| download | kernel-qcow2-util-linux-a15dca2f6d0693546138a6a727f019dd8019dee8.tar.gz kernel-qcow2-util-linux-a15dca2f6d0693546138a6a727f019dd8019dee8.tar.xz kernel-qcow2-util-linux-a15dca2f6d0693546138a6a727f019dd8019dee8.zip | |
include/debug: introduce __UL_INIT_DEBUG_FROM_STRING()
Let's make it possible to use debug.h without environment variables.
Suggested-by: J William Piggott <elseifthen@gmx.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'include/debug.h')
| -rw-r--r-- | include/debug.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/include/debug.h b/include/debug.h index ff51e04d9..39c21d563 100644 --- a/include/debug.h +++ b/include/debug.h @@ -83,15 +83,12 @@ struct ul_debug_maskname { } \ } while (0) - -#define __UL_INIT_DEBUG(lib, pref, mask, env) \ +#define __UL_INIT_DEBUG_FROM_STRING(lib, pref, mask, str) \ do { \ if (lib ## _debug_mask & pref ## INIT) \ ; \ - else if (!mask) { \ - char *str = getenv(# env); \ - if (str) \ - lib ## _debug_mask = ul_debug_parse_envmask(lib ## _masknames, str); \ + else if (!mask && str) { \ + lib ## _debug_mask = ul_debug_parse_mask(lib ## _masknames, str); \ } else \ lib ## _debug_mask = mask; \ if (lib ## _debug_mask) { \ @@ -104,6 +101,14 @@ struct ul_debug_maskname { } while (0) +#define __UL_INIT_DEBUG_FROM_ENV(lib, pref, mask, env) \ + do { \ + const char *envstr = mask ? NULL : getenv(# env); \ + __UL_INIT_DEBUG_FROM_STRING(lib, pref, mask, envstr); \ + } while (0) + + + static inline void __attribute__ ((__format__ (__printf__, 1, 2))) ul_debug(const char *mesg, ...) { @@ -114,7 +119,7 @@ ul_debug(const char *mesg, ...) fputc('\n', stderr); } -static inline int ul_debug_parse_envmask( +static inline int ul_debug_parse_mask( const struct ul_debug_maskname flagnames[], const char *mask) { |