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Fix coding style

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- Use block for single statement ifs
- Keep lines to reasonable length (current debate as to reasonable)
- When functions return -1 for error test against 0 not -1
- Do not indent cases another level
- Do not test against NULL and 0 explicitly
- Use tabs for indentation, use spaces for alignment
This commit is contained in:
Aaron Marcher
2018-05-06 22:28:56 +02:00
parent 66a7fb16fc
commit ee5ec75621
15 changed files with 91 additions and 66 deletions
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47
components/swap.c
View File

@ -13,13 +13,11 @@
size_t bytes_read;
if (!(fp = fopen(path, "r"))) {
fprintf(stderr, "fopen '%s': %s\n", path,
strerror(errno));
fprintf(stderr, "fopen '%s': %s\n", path, strerror(errno));
return 0;
}
if ((bytes_read = fread(buf, sizeof(char), bufsiz, fp)) == 0) {
fprintf(stderr, "fread '%s': %s\n", path,
strerror(errno));
if (!(bytes_read = fread(buf, sizeof(char), bufsiz, fp))) {
fprintf(stderr, "fread '%s': %s\n", path, strerror(errno));
fclose(fp);
return 0;
}
@ -40,12 +38,14 @@
return NULL;
}
if ((match = strstr(buf, "SwapTotal")) == NULL)
if (!(match = strstr(buf, "SwapTotal"))) {
return NULL;
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
if ((match = strstr(buf, "SwapFree")) == NULL)
if (!(match = strstr(buf, "SwapFree"))) {
return NULL;
}
sscanf(match, "SwapFree: %ld kB\n", &free);
return bprintf("%f", (float)free / 1024 / 1024);
@ -61,16 +61,19 @@
return NULL;
}
if ((match = strstr(buf, "SwapTotal")) == NULL)
if (!(match = strstr(buf, "SwapTotal"))) {
return NULL;
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
if ((match = strstr(buf, "SwapCached")) == NULL)
if (!(match = strstr(buf, "SwapCached"))) {
return NULL;
}
sscanf(match, "SwapCached: %ld kB\n", &cached);
if ((match = strstr(buf, "SwapFree")) == NULL)
if (!(match = strstr(buf, "SwapFree"))) {
return NULL;
}
sscanf(match, "SwapFree: %ld kB\n", &free);
return bprintf("%d", 100 * (total - free - cached) / total);
@ -86,8 +89,9 @@
return NULL;
}
if ((match = strstr(buf, "SwapTotal")) == NULL)
if (!(match = strstr(buf, "SwapTotal"))) {
return NULL;
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
return bprintf("%f", (float)total / 1024 / 1024);
@ -103,16 +107,19 @@
return NULL;
}
if ((match = strstr(buf, "SwapTotal")) == NULL)
if (!(match = strstr(buf, "SwapTotal"))) {
return NULL;
}
sscanf(match, "SwapTotal: %ld kB\n", &total);
if ((match = strstr(buf, "SwapCached")) == NULL)
if (!(match = strstr(buf, "SwapCached"))) {
return NULL;
}
sscanf(match, "SwapCached: %ld kB\n", &cached);
if ((match = strstr(buf, "SwapFree")) == NULL)
if (!(match = strstr(buf, "SwapFree"))) {
return NULL;
}
sscanf(match, "SwapFree: %ld kB\n", &free);
return bprintf("%f", (float)(total - free - cached) / 1024 / 1024);
@ -133,19 +140,23 @@
int rnswap, nswap, i;
nswap = swapctl(SWAP_NSWAP, 0, 0);
if (nswap < 1)
if (nswap < 1) {
fprintf(stderr, "swaptctl 'SWAP_NSWAP': %s\n", strerror(errno));
}
fsep = sep = calloc(nswap, sizeof(*sep));
if (sep == NULL)
if (!sep) {
fprintf(stderr, "calloc 'nswap': %s\n", strerror(errno));
}
rnswap = swapctl(SWAP_STATS, (void *)sep, nswap);
if (rnswap < 0)
if (rnswap < 0) {
fprintf(stderr, "swapctl 'SWAP_STATA': %s\n", strerror(errno));
}
if (nswap != rnswap)
if (nswap != rnswap) {
fprintf(stderr, "SWAP_STATS != SWAP_NSWAP\n");
}
*total = 0;
*used = 0;