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comparison system/System.cpp @ 169:603991c63ff6

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author Chris Cannam
date Mon, 25 Sep 2006 20:32:44 +0000
parents 04baa690f90d
children b23eea68357e
comparison
equal deleted inserted replaced
168:04baa690f90d 169:603991c63ff6
13 COPYING included with this distribution for more information. 13 COPYING included with this distribution for more information.
14 */ 14 */
15 15
16 #include "System.h" 16 #include "System.h"
17 17
18 #include <QFile>
19 #include <QTextStream>
20 #include <QStringList> 18 #include <QStringList>
21 #include <QString> 19 #include <QString>
22 20
23 #ifndef _WIN32 21 #ifndef _WIN32
24 #include <signal.h> 22 #include <signal.h>
77 } 75 }
78 76
79 int 77 int
80 GetRealMemoryMBAvailable() 78 GetRealMemoryMBAvailable()
81 { 79 {
82 // ugh 80 FILE *meminfo = fopen("/proc/meminfo", "r");
83 QFile meminfo("/proc/meminfo"); 81 if (!meminfo) return -1;
84 if (meminfo.open(QFile::ReadOnly)) { 82
85 std::cerr << "opened meminfo" << std::endl; 83 char buf[256];
86 QTextStream in(&meminfo); 84 while (!feof(meminfo)) {
87 while (!in.atEnd()) { 85 fgets(buf, 256, meminfo);
88 QString line = in.readLine(256); 86 if (strncmp(buf, "MemFree:", 8)) {
89 std::cerr << "read: \"" << line.toStdString() << "\"" << std::endl; 87 fclose(meminfo);
90 if (line.startsWith("MemFree:")) { 88 QString line = QString(buf).trimmed();
91 QStringList elements = line.split(' ', QString::SkipEmptyParts); 89 QStringList elements = line.split(' ', QString::SkipEmptyParts);
92 QString unit = "kB"; 90 QString unit = "kB";
93 if (elements.size() > 2) unit = elements[2]; 91 if (elements.size() > 2) unit = elements[2];
94 int size = elements[1].toInt(); 92 int size = elements[1].toInt();
95 std::cerr << "have size \"" << size << "\", unit \"" 93 // std::cerr << "have size \"" << size << "\", unit \""
96 << unit.toStdString() << "\"" << std::endl; 94 // << unit.toStdString() << "\"" << std::endl;
97 if (unit.toLower() == "gb") return size * 1024; 95 if (unit.toLower() == "gb") return size * 1024;
98 if (unit.toLower() == "mb") return size; 96 if (unit.toLower() == "mb") return size;
99 if (unit.toLower() == "kb") return size / 1024; 97 if (unit.toLower() == "kb") return size / 1024;
100 return size / 1048576; 98 return size / 1048576;
101 }
102 } 99 }
103 } 100 }
101 fclose(meminfo);
104 return -1; 102 return -1;
105 } 103 }
106 104
107 int 105 int
108 GetDiscSpaceMBAvailable(const char *path) 106 GetDiscSpaceMBAvailable(const char *path)