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Add new API calls for embedding renderdoc in apps

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* This will easily let an application tell if an instance of the replay
  UI is currently connected, and if not launch it and connect. Good for
  integrating renderdoc somewhere where you can trigger a capture, and
  then have the replay UI pop up to either connect live, or open the
  most recently log.
This commit is contained in:
baldurk
2015-06-19 22:15:51 +02:00
parent de61af5921
commit b8226fc97c
9 changed files with 407 additions and 206 deletions
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renderdoc/os/linux/linux_process.cpp
+166 -144
View File
@@ -34,13 +34,176 @@
#include "serialise/string_utils.h"
pid_t RunProcess(const char *app, const char *workingDir, const char *cmdLine, char *const *envp)
{
if(!app) return (pid_t)0;
int argc = 0;
char *emptyargv[] = { NULL };
char **argv = emptyargv;
const char *c = cmdLine;
// parse command line into argv[], similar to how bash would
if(cmdLine)
{
argc = 1;
// get a rough upper bound on the number of arguments
while(*c)
{
if(*c == ' ' || *c == '\t') argc++;
c++;
}
argv = new char*[argc+2];
c = cmdLine;
string a;
argc = 0; // current argument we're fetching
// argv[0] is the application name, by convention
size_t len = strlen(app)+1;
argv[argc] = new char[len];
strcpy(argv[argc], app);
argc++;
bool dquot = false, squot = false; // are we inside ''s or ""s
while(*c)
{
if(!dquot && !squot && (*c == ' ' || *c == '\t'))
{
if(!a.empty())
{
// if we've fetched some number of non-space characters
argv[argc] = new char[a.length()+1];
memcpy(argv[argc], a.c_str(), a.length()+1);
argc++;
}
a = "";
}
else if(!dquot && *c == '"')
{
dquot = true;
}
else if(!squot && *c == '\'')
{
squot = true;
}
else if(dquot && *c == '"')
{
dquot = false;
}
else if(squot && *c == '\'')
{
squot = false;
}
else if(squot)
{
// single quotes don't escape, just copy literally until we leave single quote mode
a.push_back(*c);
}
else if(dquot)
{
// handle escaping
if(*c == '\\')
{
c++;
if(*c)
{
a.push_back(*c);
}
else
{
RDCERR("Malformed command line:\n%s", cmdLine);
return 0;
}
}
else
{
a.push_back(*c);
}
}
else
{
a.push_back(*c);
}
c++;
}
if(!a.empty())
{
// if we've fetched some number of non-space characters
argv[argc] = new char[a.length()+1];
memcpy(argv[argc], a.c_str(), a.length()+1);
argc++;
}
argv[argc] = NULL;
if(squot || dquot)
{
RDCERR("Malformed command line\n%s", cmdLine);
return 0;
}
}
pid_t childPid = fork();
if(childPid == 0)
{
if(workingDir)
{
chdir(workingDir);
}
else
{
string exedir = app;
chdir(dirname((char *)exedir.c_str()));
}
execve(app, argv, envp);
exit(0);
}
char **argv_delete = argv;
if(argv != emptyargv)
{
while(*argv)
{
delete[] *argv;
argv++;
}
delete[] argv_delete;
}
return childPid;
}
uint32_t Process::InjectIntoProcess(uint32_t pid, const char *logfile, const CaptureOptions *opts, bool waitForExit)
{
RDCUNIMPLEMENTED("Injecting into already running processes on linux");
return 0;
}
uint32_t Process::CreateAndInjectIntoProcess(const char *app, const char *workingDir, const char *cmdLine,
uint32_t Process::LaunchProcess(const char *app, const char *workingDir, const char *cmdLine)
{
if(app == NULL || app[0] == 0)
{
RDCERR("Invalid empty 'app'");
return 0;
}
return (uint32_t)RunProcess(app, workingDir, cmdLine, environ);
}
uint32_t Process::LaunchAndInjectIntoProcess(const char *app, const char *workingDir, const char *cmdLine,
const char *logfile, const CaptureOptions *opts, bool waitForExit)
{
if(app == NULL || app[0] == 0)
@@ -160,140 +323,11 @@ uint32_t Process::CreateAndInjectIntoProcess(const char *app, const char *workin
envp[i] = NULL;
}
int argc = 0;
char *emptyargv[] = { NULL };
char **argv = emptyargv;
const char *c = cmdLine;
// parse command line into argv[], similar to how bash would
if(cmdLine)
{
argc = 1;
// get a rough upper bound on the number of arguments
while(*c)
{
if(*c == ' ' || *c == '\t') argc++;
c++;
}
argv = new char*[argc+2];
c = cmdLine;
string a;
argc = 0; // current argument we're fetching
// argv[0] is the application name, by convention
size_t len = strlen(app)+1;
argv[argc] = new char[len];
strcpy(argv[argc], app);
argc++;
bool dquot = false, squot = false; // are we inside ''s or ""s
while(*c)
{
if(!dquot && !squot && (*c == ' ' || *c == '\t'))
{
if(!a.empty())
{
// if we've fetched some number of non-space characters
argv[argc] = new char[a.length()+1];
memcpy(argv[argc], a.c_str(), a.length()+1);
argc++;
}
a = "";
}
else if(!dquot && *c == '"')
{
dquot = true;
}
else if(!squot && *c == '\'')
{
squot = true;
}
else if(dquot && *c == '"')
{
dquot = false;
}
else if(squot && *c == '\'')
{
squot = false;
}
else if(squot)
{
// single quotes don't escape, just copy literally until we leave single quote mode
a.push_back(*c);
}
else if(dquot)
{
// handle escaping
if(*c == '\\')
{
c++;
if(*c)
{
a.push_back(*c);
}
else
{
RDCERR("Malformed command line:\n%s", cmdLine);
return 0;
}
}
else
{
a.push_back(*c);
}
}
else
{
a.push_back(*c);
}
c++;
}
if(!a.empty())
{
// if we've fetched some number of non-space characters
argv[argc] = new char[a.length()+1];
memcpy(argv[argc], a.c_str(), a.length()+1);
argc++;
}
argv[argc] = NULL;
if(squot || dquot)
{
RDCERR("Malformed command line\n%s", cmdLine);
return 0;
}
}
pid_t childPid = RunProcess(app, workingDir, cmdLine, envp);
int ret = 0;
pid_t childPid = fork();
if(childPid == 0)
{
if(workingDir)
{
chdir(workingDir);
}
else
{
string exedir = app;
chdir(dirname((char *)exedir.c_str()));
}
execve(app, argv, envp);
exit(0);
}
else if(childPid > 0)
if(childPid != (pid_t)0)
{
// wait for child to have /proc/<pid> and read out tcp socket
usleep(1000);
@@ -343,20 +377,8 @@ uint32_t Process::CreateAndInjectIntoProcess(const char *app, const char *workin
}
}
char **argv_delete = argv;
char **envp_delete = envp;
if(argv != emptyargv)
{
while(*argv)
{
delete[] *argv;
argv++;
}
delete[] argv_delete;
}
while(*envp)
{
delete[] *envp;