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https://github.com/checkpoint-restore/criu.git
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1c0716924b
All those compel functions can fail by various reasons. It may be status of the system, interruption by user or anything else. It's really desired to handle as many PIE related errors as possible otherwise it's hard to analyze statuses of parasite/restorer and the C/R process. At least warning for logs should be produced or even C/R stopped. Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: Andrei Vagin <avagin@gmail.com>
30 lines
1.2 KiB
C
30 lines
1.2 KiB
C
#ifndef COMPEL_PLUGIN_STD_LOG_H__
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#define COMPEL_PLUGIN_STD_LOG_H__
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#include "compel/loglevels.h"
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#include "common/compiler.h"
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#define STD_LOG_SIMPLE_CHUNK 256
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extern void std_log_set_fd(int fd);
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extern void std_log_set_loglevel(enum __compel_log_levels level);
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extern void std_log_set_start(struct timeval *tv);
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/*
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* Provides a function to get time *in the infected task* for log timings.
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* Expected use-case: address on the vdso page to get time.
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* If not set or called with NULL - compel will use raw syscall,
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* which requires enter in the kernel and as a result affects performance.
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*/
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typedef int (*gettimeofday_t)(struct timeval *tv, struct timezone *tz);
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extern void std_log_set_gettimeofday(gettimeofday_t gtod);
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/* std plugin helper to get time (hopefully, efficiently) */
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extern int std_gettimeofday(struct timeval *tv, struct timezone *tz);
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extern int std_vprint_num(char *buf, int blen, int num, char **ps);
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extern void std_sprintf(char output[STD_LOG_SIMPLE_CHUNK], const char *format, ...)
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__attribute__ ((__format__ (__printf__, 2, 3)));
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extern void print_on_level(unsigned int loglevel, const char *format, ...)
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__attribute__ ((__format__ (__printf__, 2, 3)));
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#endif /* COMPEL_PLUGIN_STD_LOG_H__ */
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