2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
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14 * this software without specific prior written permission.
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32 #include <mach/mach_init.h>
33 #include <mach/shared_region.h>
34 #include <mach/task.h>
38 #include "base/hostinfo.hh"
48 #include "base/logging.hh"
49 #include "base/str.hh"
50 #include "base/types.hh"
58 if (gethostname(host
, sizeof host
) == -1)
59 warn("could not get host name!");
66 static string hostname
= __get_hostname();
71 procInfo(const char *filename
, const char *target
)
78 FILE *fp
= fopen(filename
, "r");
80 while (fp
&& !feof(fp
) && !done
) {
81 if (fgets(line
, 80, fp
)) {
82 if (startswith(line
, target
)) {
83 snprintf(format
, sizeof(format
), "%s %%ld", target
);
84 sscanf(line
, format
, &usage
);
101 // For the Mach-based Darwin kernel, use the task_info of the self task
103 struct task_basic_info t_info
;
104 mach_msg_type_number_t t_info_count
= TASK_BASIC_INFO_COUNT
;
106 if (KERN_SUCCESS
!= task_info(mach_task_self(),
107 TASK_BASIC_INFO
, (task_info_t
)&t_info
,
112 // Mimic Darwin's implementation of top and subtract
113 // SHARED_REGION_SIZE from the tasks virtual size to account for the
114 // shared memory submap that is incorporated into every process.
115 return (t_info
.virtual_size
- SHARED_REGION_SIZE
) / 1024;
117 // Linux implementation
118 return procInfo("/proc/self/status", "VmSize:");