From 7839e93c9b9ef9635109a9130edf012a80335897 Mon Sep 17 00:00:00 2001 From: Benedikt Heine Date: Mon, 16 Apr 2018 15:41:13 +0200 Subject: Rename ram variables consistently --- src/print_mem.c | 89 +++++++++++++++++++++++++++++---------------------------- 1 file changed, 45 insertions(+), 44 deletions(-) (limited to 'src/print_mem.c') diff --git a/src/print_mem.c b/src/print_mem.c index c2f48f4..fe93d0b 100644 --- a/src/print_mem.c +++ b/src/print_mem.c @@ -11,7 +11,7 @@ #define MAX_EXPONENT 4 static const char *const iec_symbols[MAX_EXPONENT + 1] = {"", "Ki", "Mi", "Gi", "Ti"}; -static const char filename[] = "/proc/meminfo"; +static const char memoryfile_linux[] = "/proc/meminfo"; /* * Prints the given amount of bytes in a human readable manner. @@ -32,30 +32,30 @@ static int print_bytes_human(char *outwalk, uint64_t bytes) { * Determines whether remaining bytes are below given threshold. * */ -static bool below_threshold(const long totalRam, const long usedRam, const char *threshold_type, const long low_threshold) { +static bool below_threshold(const long ram_total, const long ram_used, const char *threshold_type, const long low_threshold) { // empty is available or free, based on "use_available_memory" - long empty = totalRam - usedRam; + long empty = ram_total - ram_used; if (BEGINS_WITH(threshold_type, "percentage_")) { - return 100.0 * empty / totalRam < low_threshold; + return 100.0 * empty / ram_total < low_threshold; } else if (strcasecmp(threshold_type, "bytes_free") == 0) { return empty < low_threshold; } else if (threshold_type[0] != '\0' && strncasecmp(threshold_type + 1, "bytes_", strlen("bytes_")) == 0) { - uint64_t base = BINARY_BASE; + long factor = 1; switch (threshold_type[0]) { case 'T': case 't': - factor *= base; + factor *= BINARY_BASE; case 'G': case 'g': - factor *= base; + factor *= BINARY_BASE; case 'M': case 'm': - factor *= base; + factor *= BINARY_BASE; case 'K': case 'k': - factor *= base; + factor *= BINARY_BASE; break; default: return false; @@ -73,62 +73,62 @@ void print_memory(yajl_gen json_gen, char *buffer, const char *format, const cha const char *walk; bool colorful_output = false; - long totalRam = -1; - long freeRam = -1; - long availableRam = -1; - long usedRam = -1; - long sharedRam = -1; - long cached = -1; - long buffers = -1; + long ram_total = -1; + long ram_free = -1; + long ram_available = -1; + long ram_used = -1; + long ram_shared = -1; + long ram_cached = -1; + long ram_buffers = -1; - FILE *file = fopen(filename, "r"); + FILE *file = fopen(memoryfile_linux, "r"); if (!file) { goto error; } char line[128]; while (fgets(line, sizeof line, file)) { if (BEGINS_WITH(line, "MemTotal:")) { - totalRam = strtol(line + strlen("MemTotal:"), NULL, 10); + ram_total = strtol(line + strlen("MemTotal:"), NULL, 10); } if (BEGINS_WITH(line, "MemFree:")) { - freeRam = strtol(line + strlen("MemFree:"), NULL, 10); + ram_free = strtol(line + strlen("MemFree:"), NULL, 10); } if (BEGINS_WITH(line, "MemAvailable:")) { - availableRam = strtol(line + strlen("MemAvailable:"), NULL, 10); + ram_available = strtol(line + strlen("MemAvailable:"), NULL, 10); } if (BEGINS_WITH(line, "Buffers:")) { - buffers = strtol(line + strlen("Buffers:"), NULL, 10); + ram_buffers = strtol(line + strlen("Buffers:"), NULL, 10); } if (BEGINS_WITH(line, "Cached:")) { - cached = strtol(line + strlen("Cached:"), NULL, 10); + ram_cached = strtol(line + strlen("Cached:"), NULL, 10); } if (BEGINS_WITH(line, "Shmem:")) { - sharedRam = strtol(line + strlen("Shmem:"), NULL, 10); + ram_shared = strtol(line + strlen("Shmem:"), NULL, 10); } - if (totalRam != -1 && freeRam != -1 && availableRam != -1 && buffers != -1 && cached != -1 && sharedRam != -1) { + if (ram_total != -1 && ram_free != -1 && ram_available != -1 && ram_buffers != -1 && ram_cached != -1 && ram_shared != -1) { break; } } fclose(file); - if (totalRam == -1 || freeRam == -1 || availableRam == -1 || buffers == -1 || cached == -1 || sharedRam == -1) { + if (ram_total == -1 || ram_free == -1 || ram_available == -1 || ram_buffers == -1 || ram_cached == -1 || ram_shared == -1) { goto error; } - totalRam = totalRam * BINARY_BASE; - freeRam = freeRam * BINARY_BASE; - availableRam = availableRam * BINARY_BASE; - buffers = buffers * BINARY_BASE; - cached = cached * BINARY_BASE; - sharedRam = sharedRam * BINARY_BASE; + ram_total = ram_total * BINARY_BASE; + ram_free = ram_free * BINARY_BASE; + ram_available = ram_available * BINARY_BASE; + ram_buffers = ram_buffers * BINARY_BASE; + ram_cached = ram_cached * BINARY_BASE; + ram_shared = ram_shared * BINARY_BASE; if (use_available_memory) { - usedRam = totalRam - availableRam; + ram_used = ram_total - ram_available; } else { - usedRam = totalRam - freeRam - buffers - cached; + ram_used = ram_total - ram_free - ram_buffers - ram_cached; } - if (degraded_low_threshold > 0 && below_threshold(totalRam, usedRam, degraded_threshold_type, degraded_low_threshold)) { - if (critical_low_threshold > 0 && below_threshold(totalRam, usedRam, critical_threshold_type, critical_low_threshold)) { + if (degraded_low_threshold > 0 && below_threshold(ram_total, ram_used, degraded_threshold_type, degraded_low_threshold)) { + if (critical_low_threshold > 0 && below_threshold(ram_total, ram_used, critical_threshold_type, critical_low_threshold)) { START_COLOR("color_bad"); colorful_output = true; if (critical_format_below_threshold != NULL) @@ -147,47 +147,47 @@ void print_memory(yajl_gen json_gen, char *buffer, const char *format, const cha continue; } if (BEGINS_WITH(walk + 1, "total")) { - outwalk += print_bytes_human(outwalk, totalRam); + outwalk += print_bytes_human(outwalk, ram_total); walk += strlen("total"); } if (BEGINS_WITH(walk + 1, "used")) { - outwalk += print_bytes_human(outwalk, usedRam); + outwalk += print_bytes_human(outwalk, ram_used); walk += strlen("used"); } if (BEGINS_WITH(walk + 1, "free")) { - outwalk += print_bytes_human(outwalk, freeRam); + outwalk += print_bytes_human(outwalk, ram_free); walk += strlen("free"); } if (BEGINS_WITH(walk + 1, "available")) { - outwalk += print_bytes_human(outwalk, availableRam); + outwalk += print_bytes_human(outwalk, ram_available); walk += strlen("available"); } if (BEGINS_WITH(walk + 1, "shared")) { - outwalk += print_bytes_human(outwalk, sharedRam); + outwalk += print_bytes_human(outwalk, ram_shared); walk += strlen("shared"); } if (BEGINS_WITH(walk + 1, "percentage_free")) { - outwalk += sprintf(outwalk, "%.01f%s", 100.0 * freeRam / totalRam, pct_mark); + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * ram_free / ram_total, pct_mark); walk += strlen("percentage_free"); } if (BEGINS_WITH(walk + 1, "percentage_available")) { - outwalk += sprintf(outwalk, "%.01f%s", 100.0 * availableRam / totalRam, pct_mark); + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * ram_available / ram_total, pct_mark); walk += strlen("percentage_available"); } if (BEGINS_WITH(walk + 1, "percentage_used")) { - outwalk += sprintf(outwalk, "%.01f%s", 100.0 * usedRam / totalRam, pct_mark); + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * ram_used / ram_total, pct_mark); walk += strlen("percentage_used"); } if (BEGINS_WITH(walk + 1, "percentage_shared")) { - outwalk += sprintf(outwalk, "%.01f%s", 100.0 * sharedRam / totalRam, pct_mark); + outwalk += sprintf(outwalk, "%.01f%s", 100.0 * ram_shared / ram_total, pct_mark); walk += strlen("percentage_shared"); } } @@ -203,6 +203,7 @@ error: OUTPUT_FULL_TEXT("can't read memory"); fputs("i3status: Cannot read system memory using /proc/meminfo\n", stderr); #else + OUTPUT_FULL_TEXT(""); fputs("i3status: Memory status information is not supported on this system\n", stderr); #endif } -- cgit v1.2.3