diff options
Diffstat (limited to 'src/modules/mavlink/mavlink_log.c')
-rw-r--r-- | src/modules/mavlink/mavlink_log.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/modules/mavlink/mavlink_log.c b/src/modules/mavlink/mavlink_log.c index fa974dc0b..d9416a08b 100644 --- a/src/modules/mavlink/mavlink_log.c +++ b/src/modules/mavlink/mavlink_log.c @@ -41,6 +41,7 @@ #include <string.h> #include <stdlib.h> +#include <stdarg.h> #include <mavlink/mavlink_log.h> @@ -87,3 +88,31 @@ int mavlink_logbuffer_read(struct mavlink_logbuffer *lb, struct mavlink_logmessa return 1; } } + +void mavlink_logbuffer_vasprintf(struct mavlink_logbuffer *lb, int severity, const char *fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + int end = (lb->start + lb->count) % lb->size; + lb->elems[end].severity = severity; + vsnprintf(lb->elems[end].text, sizeof(lb->elems[0].text), fmt, ap); + va_end(ap); + + /* increase count */ + if (mavlink_logbuffer_is_full(lb)) { + lb->start = (lb->start + 1) % lb->size; /* full, overwrite */ + + } else { + ++lb->count; + } +} + +__EXPORT void mavlink_vasprintf(int _fd, int severity, const char *fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + char text[MAVLINK_LOG_MAXLEN + 1]; + vsnprintf(text, sizeof(text), fmt, ap); + va_end(ap); + ioctl(_fd, severity, (unsigned long)&text[0]); +} |