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perf tools: Remove subcmd dependencies on strbuf
Introduce and use new astrcat() and astrcatf() functions which replace the strbuf functionality for subcmd. For now they duplicate strbuf's die-on-allocation-error policy. Signed-off-by: Josh Poimboeuf <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/957d207e1254406fa11fc2e405e75a7e405aad8f.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Original file line number | Diff line number | Diff line change |
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#ifndef __PERF_SUBCMD_UTIL_H | ||
#define __PERF_SUBCMD_UTIL_H | ||
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#include <stdio.h> | ||
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#define astrcatf(out, fmt, ...) \ | ||
({ \ | ||
char *tmp = *(out); \ | ||
if (asprintf((out), "%s" fmt, tmp ?: "", ## __VA_ARGS__) == -1) \ | ||
die("asprintf failed"); \ | ||
free(tmp); \ | ||
}) | ||
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static inline void astrcat(char **out, const char *add) | ||
{ | ||
char *tmp = *out; | ||
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if (asprintf(out, "%s%s", tmp ?: "", add) == -1) | ||
die("asprintf failed"); | ||
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free(tmp); | ||
} | ||
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#endif /* __PERF_SUBCMD_UTIL_H */ |