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comparison lib/fsusage.c @ 7:2d78b0003b93

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(adjust_blocks): Convert to a macro. The static function wasn't always used.
author Jim Meyering <jim@meyering.net>
date Sat, 31 Oct 1992 22:50:51 +0000
parents 41c9d08b09d7
children df153a752270
comparison
equal deleted inserted replaced
5:41c9d08b09d7 7:2d78b0003b93
54 #endif 54 #endif
55 55
56 /* Return the number of TOSIZE-byte blocks used by 56 /* Return the number of TOSIZE-byte blocks used by
57 BLOCKS FROMSIZE-byte blocks, rounding up. */ 57 BLOCKS FROMSIZE-byte blocks, rounding up. */
58 58
59 static long 59 #define adjust_blocks(blocks, fromsize, tosize) \
60 adjust_blocks (blocks, fromsize, tosize) 60 (((fromsize) == (tosize)) \
61 long blocks; 61 ? (blocks) /* E.g., from 512 to 512. */ \
62 int fromsize, tosize; 62 : (((fromsize) > (tosize)) \
63 { 63 /* E.g., from 2048 to 512. */ \
64 if (fromsize == tosize) /* E.g., from 512 to 512. */ 64 ? (blocks) * ((fromsize) / (tosize)) \
65 return blocks; 65 /* E.g., from 256 to 512. */ \
66 else if (fromsize > tosize) /* E.g., from 2048 to 512. */ 66 : ((blocks) + 1) / ((tosize) / (fromsize))))
67 return blocks * (fromsize / tosize);
68 else /* E.g., from 256 to 512. */
69 return (blocks + 1) / (tosize / fromsize);
70 }
71 67
72 /* Fill in the fields of FSP with information about space usage for 68 /* Fill in the fields of FSP with information about space usage for
73 the filesystem on which PATH resides. 69 the filesystem on which PATH resides.
74 DISK is the device on which PATH is mounted, for space-getting 70 DISK is the device on which PATH is mounted, for space-getting
75 methods that need to know it. 71 methods that need to know it.