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29 #include <sys/types.h>
38 #include "base/misc.hh"
39 #include "sim/universe.hh"
40 #include "sim/host.hh"
41 #include "sim/param.hh"
52 string outputDirectory
;
53 ostream
*outputStream
;
54 ostream
*configStream
;
56 class UniverseParamContext
: public ParamContext
59 UniverseParamContext(const string
&is
) : ParamContext(is
) {}
63 UniverseParamContext
universe("Universe");
65 Param
<Tick
> universe_freq(&universe
, "frequency", "tick frequency",
68 Param
<string
> universe_output_dir(&universe
, "output_dir",
69 "directory to output data to",
71 Param
<string
> universe_output_file(&universe
, "output_file",
72 "file to dump simulator output to",
74 Param
<string
> universe_config_output_file(&universe
, "config_output_file",
75 "file to dump simulator config to",
79 UniverseParamContext::checkParams()
81 ticksPerSecond
= universe_freq
;
82 double freq
= double(ticksPerSecond
);
83 __ticksPerMS
= freq
/ 1.0e3
;
84 __ticksPerUS
= freq
/ 1.0e6
;
85 __ticksPerNS
= freq
/ 1.0e9
;
86 __ticksPerPS
= freq
/ 1.0e12
;
88 if (universe_output_dir
.isValid()) {
89 outputDirectory
= universe_output_dir
;
91 // guarantee that directory ends with a '/'
92 if (outputDirectory
[outputDirectory
.size() - 1] != '/')
93 outputDirectory
+= "/";
95 if (mkdir(outputDirectory
.c_str(), 0777) < 0) {
96 if (errno
!= EEXIST
) {
97 panic("%s\ncould not make output directory: %s\n",
98 strerror(errno
), outputDirectory
);
103 outputStream
= makeOutputStream(universe_output_file
);
104 configStream
= universe_config_output_file
.isValid()
105 ? makeOutputStream(universe_config_output_file
)
111 makeOutputStream(std::string
&name
)
113 if (name
== "cerr" || name
== "stderr")
116 if (name
== "cout" || name
== "stdout")
119 string path
= (name
[0] != '/') ? outputDirectory
+ name
: name
;
121 // have to dynamically allocate a stream since we're going to
122 // return it... though the caller can't easily free it since it
123 // may be cerr or cout. need GC!
124 ofstream
*s
= new ofstream(path
.c_str(), ios::trunc
);
127 fatal("Cannot open file %s", path
);
134 closeOutputStream(std::ostream
*os
)
136 // can't close cerr or cout
137 if (os
== &std::cerr
|| os
== &std::cout
)
140 // can only close ofstreams, not generic ostreams, so try to
141 // downcast and close only if the downcast succeeds
142 std::ofstream
*ofs
= dynamic_cast<std::ofstream
*>(os
);