Merge "logd: add internal prdebug function"

#ifndef _LOGD_LOG_UTILS_H__

#define _LOGD_LOG_UTILS_H__

#include <sys/cdefs.h>

#include <sys/types.h>

#include <log/log.h>

// Furnished in main.cpp. Caller must own and free returned value

char *uidToName(uid_t uid);

void prdebug(const char *fmt, ...) __printflike(1, 2);

// Furnished in LogStatistics.cpp. Caller must own and free returned value

char *pidToName(pid_t pid);

    return (flag & BOOL_DEFAULT_FLAG_TRUE_FALSE) != BOOL_DEFAULT_FALSE;

}

// Remove the static, and use this variable

// globally for debugging if necessary. eg:

//   write(fdDmesg, "I am here\n", 10);

static int fdDmesg = -1;

void inline android::prdebug(const char *fmt, ...) {

    if (fdDmesg < 0) {

        return;

    }

    static const char message[] = {

        KMSG_PRIORITY(LOG_DEBUG), 'l', 'o', 'g', 'd', ':', ' '

    };

    char buffer[256];

    memcpy(buffer, message, sizeof(message));

    va_list ap;

    va_start(ap, fmt);

    int n = vsnprintf(buffer + sizeof(message),

                      sizeof(buffer) - sizeof(message), fmt, ap);

    va_end(ap);

    if (n > 0) {

        buffer[sizeof(buffer) - 1] = '\0';

        if (!strchr(buffer, '\n')) {

            buffer[sizeof(buffer) - 2] = '\0';

            strlcat(buffer, "\n", sizeof(buffer));

        }

        write(fdDmesg, buffer, strlen(buffer));

    }

}

static sem_t uidName;

static uid_t uid;