Merge fmt_human_2 and fmt_human_10 to one function

Now only one function, fmt_human, takes an additional argument "base".

components/cpu.c

@@ -20,7 +20,7 @@
 			return NULL;
 		}
 
-		return fmt_human_10(freq * 1000);
+		return fmt_human(freq * 1000, 1000);
 	}
 
 	const char *
@@ -67,7 +67,7 @@
 			return NULL;
 		}
 
-		return fmt_human_10((size_t)freq * 1000 * 1000);
+		return fmt_human((size_t)freq * 1000 * 1000, 1000);
 	}
 
 	const char *

components/disk.c

@@ -16,7 +16,7 @@ disk_free(const char *mnt)
 		return NULL;
 	}
 
-	return fmt_human_2(fs.f_frsize * fs.f_bavail);
+	return fmt_human(fs.f_frsize * fs.f_bavail, 1024);
 }
 
 const char *
@@ -43,7 +43,7 @@ disk_total(const char *mnt)
 		return NULL;
 	}
 
-	return fmt_human_2(fs.f_frsize * fs.f_blocks);
+	return fmt_human(fs.f_frsize * fs.f_blocks, 1024);
 }
 
 const char *
@@ -56,5 +56,5 @@ disk_used(const char *mnt)
 		return NULL;
 	}
 
-	return fmt_human_2(fs.f_frsize * (fs.f_blocks - fs.f_bfree));
+	return fmt_human(fs.f_frsize * (fs.f_blocks - fs.f_bfree), 1024);
 }

components/netspeeds.c

@@ -29,7 +29,8 @@
 			return NULL;
 		}
 
-		return fmt_human_2((rxbytes - oldrxbytes) * 1000 / interval);
+		return fmt_human((rxbytes - oldrxbytes) * 1000 / interval,
+		                 1024);
 	}
 
 	const char *
@@ -54,7 +55,8 @@
 			return NULL;
 		}
 
-		return fmt_human_2((txbytes - oldtxbytes) * 1000 / interval);
+		return fmt_human((txbytes - oldtxbytes) * 1000 / interval,
+		                 1024);
 	}
 #elif defined(__OpenBSD__)
 	#include <string.h>
@@ -95,7 +97,8 @@
 			return NULL;
 		}
 
-		return fmt_human_2((rxbytes - oldrxbytes) * 1000 / interval);
+		return fmt_human((rxbytes - oldrxbytes) * 1000 / interval,
+		                 1024);
 	}
 
 	const char *
@@ -130,6 +133,7 @@
 			return NULL;
 		}
 
-		return fmt_human_2((txbytes - oldtxbytes) * 1000 / interval);
+		return fmt_human_2((txbytes - oldtxbytes) * 1000 / interval,
+		                   1024);
 	}
 #endif

components/ram.c

@@ -17,7 +17,7 @@
 			return NULL;
 		}
 
-		return fmt_human_2(free * 1024);
+		return fmt_human(free * 1024, 1024);
 	}
 
 	const char *
@@ -48,7 +48,7 @@
 			return NULL;
 		}
 
-		return fmt_human_2(total * 1024);
+		return fmt_human(total * 1024, 1024);
 	}
 
 	const char *
@@ -65,7 +65,8 @@
 			return NULL;
 		}
 
-		return fmt_human_2((total - free - buffers - cached) * 1024);
+		return fmt_human((total - free - buffers - cached) * 1024,
+		                 1024);
 	}
 #elif defined(__OpenBSD__)
 	#include <stdlib.h>
@@ -99,8 +100,8 @@
 
 		if (load_uvmexp(&uvmexp)) {
 			free_pages = uvmexp.npages - uvmexp.active;
-			return fmt_human_2(pagetok(free_pages,
-			                           uvmexp.pageshift) * 1024);
+			return fmt_human(pagetok(free_pages, uvmexp.pageshift) *
+			                 1024, 1024);
 		}
 
 		return NULL;
@@ -126,8 +127,9 @@
 		struct uvmexp uvmexp;
 
 		if (load_uvmexp(&uvmexp)) {
-			return fmt_human_2(pagetok(uvmexp.npages,
-			                           uvmexp.pageshift) * 1024);
+			return fmt_human(pagetok(uvmexp.npages,
+			                         uvmexp.pageshift) * 1024,
+			                 1024);
 		}
 
 		return NULL;
@@ -139,8 +141,9 @@
 		struct uvmexp uvmexp;
 
 		if (load_uvmexp(&uvmexp)) {
-			return fmt_human_2(pagetok(uvmexp.active,
-			                           uvmexp.pageshift) * 1024);
+			return fmt_human(pagetok(uvmexp.active,
+			                         uvmexp.pageshift) * 1024,
+			                 1024);
 		}
 
 		return NULL;

components/swap.c

@@ -48,7 +48,7 @@
 		}
 		sscanf(match, "SwapFree: %ld kB\n", &free);
 
-		return fmt_human_2(free * 1024);
+		return fmt_human(free * 1024, 1024);
 	}
 
 	const char *
@@ -98,7 +98,7 @@
 		}
 		sscanf(match, "SwapTotal: %ld kB\n", &total);
 
-		return fmt_human_2(total * 1024);
+		return fmt_human(total * 1024, 1024);
 	}
 
 	const char *
@@ -126,7 +126,7 @@
 		}
 		sscanf(match, "SwapFree: %ld kB\n", &free);
 
-		return fmt_human_2((total - free - cached) * 1024);
+		return fmt_human((total - free - cached) * 1024, 1024);
 	}
 #elif defined(__OpenBSD__)
 	#include <stdlib.h>
@@ -178,7 +178,7 @@
 
 		getstats(&total, &used);
 
-		return fmt_human_2((total - used) * 1024);
+		return fmt_human((total - used) * 1024, 1024);
 	}
 
 	const char *
@@ -202,7 +202,7 @@
 
 		getstats(&total, &used);
 
-		return fmt_human_2(total * 1024);
+		return fmt_human(total * 1024, 1024);
 	}
 
 	const char *
@@ -212,6 +212,6 @@
 
 		getstats(&total, &used);
 
-		return fmt_human_2(used * 1024);
+		return fmt_human(used * 1024, 1024);
 	}
 #endif

util.c

@@ -87,32 +87,24 @@ bprintf(const char *fmt, ...)
 }
 
 const char *
-fmt_human_2(size_t num)
+fmt_human(size_t num, int base)
 {
 	size_t i;
 	double scaled;
-	const char *prefix[] = { "", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei",
-	                         "Zi", "Yi" };
+	const char *siprefix[] = { "", "k", "M", "G", "T", "P", "E", "Z", "Y" };
+	const char *iecprefix[] = { "", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei",
+	                            "Zi", "Yi" };
+	char *prefix[9];
+
+	if (base == 1000) {
+		memcpy(prefix, siprefix, sizeof(prefix));
+	} else if (base == 1024) {
+		memcpy(prefix, iecprefix, sizeof(prefix));
+	}
 
 	scaled = num;
 	for (i = 0; i < LEN(prefix) && scaled >= 1024; i++) {
-		scaled /= 1024.0;
-	}
-
-	return bprintf("%.1f%s", scaled, prefix[i]);
-}
-
-const char *
-fmt_human_10(size_t num)
-{
-	size_t i;
-	double scaled;
-	const char *prefix[] = { "", "K", "M", "G", "T", "P", "E",
-	                         "Z", "Y" };
-
-	scaled = num;
-	for (i = 0; i < LEN(prefix) && scaled >= 1000; i++) {
-		scaled /= 1000.0;
+		scaled /= base;
 	}
 
 	return bprintf("%.1f%s", scaled, prefix[i]);

util.h

@@ -10,6 +10,5 @@ void die(const char *, ...);
 
 int esnprintf(char *str, size_t size, const char *fmt, ...);
 const char *bprintf(const char *fmt, ...);
-const char *fmt_human_2(size_t num);
-const char *fmt_human_10(size_t num);
+const char *fmt_human(size_t num, int iec);
 int pscanf(const char *path, const char *fmt, ...);