Revision 21005,
638 bytes
checked in by ghudson, 20 years ago
(diff) |
This commit was generated by cvs2svn to compensate for changes in r21004,
which included commits to RCS files with non-trunk default branches.
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1 | #include <stdio.h> |
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2 | #include <stdlib.h> |
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3 | #include <string.h> |
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4 | #include <fcntl.h> |
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5 | #include <unistd.h> |
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6 | |
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7 | int |
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8 | vmsize () |
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9 | { |
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10 | int pid, fd, size, i, mem; |
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11 | char filename[17], buf[256], *ptr, *end; |
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12 | |
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13 | pid = getpid (); |
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14 | snprintf (filename, 17, "/proc/%d/stat", pid); |
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15 | fd = open (filename, O_RDONLY); |
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16 | if (fd == -1) { |
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17 | fprintf (stderr, "warning: could not open %s\n", filename); |
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18 | return -1; |
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19 | } |
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20 | size = read (fd, buf, 240); |
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21 | if (size == -1) return -1; |
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22 | ptr = buf; |
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23 | for (i = 0; i < 22; i++) |
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24 | ptr = (char *) strchr (ptr, ' ') + 1; |
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25 | end = (char *) strchr (ptr, ' '); |
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26 | *end = 0; |
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27 | sscanf (ptr, "%d", &mem); |
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28 | close (fd); |
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29 | return mem; |
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30 | } |
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