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implement jar and file URL stream handlers

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This commit is contained in:
Joel Dice
2011-03-25 19:14:21 -06:00
parent 31eb047391
commit 3dd091c67a
13 changed files with 342 additions and 23 deletions
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37
src/finder.cpp
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@ -55,6 +55,7 @@ class Element {
virtual System::Region* find(const char* name) = 0;
virtual System::FileType stat(const char* name, unsigned* length,
bool tryDirectory) = 0;
virtual const char* urlPrefix() = 0;
virtual void dispose() = 0;
Element* next;
@ -123,7 +124,8 @@ class DirectoryElement: public Element {
};
DirectoryElement(System* s, Allocator* allocator, const char* name):
s(s), allocator(allocator), name(name)
s(s), allocator(allocator), name(name),
urlPrefix_(append(allocator, "file:", name, "/"))
{ }
virtual Element::Iterator* iterator() {
@ -157,14 +159,20 @@ class DirectoryElement: public Element {
return type;
}
virtual const char* urlPrefix() {
return urlPrefix_;
}
virtual void dispose() {
allocator->free(name, strlen(name) + 1);
allocator->free(urlPrefix_, strlen(urlPrefix_) + 1);
allocator->free(this, sizeof(*this));
}
System* s;
Allocator* allocator;
const char* name;
const char* urlPrefix_;
};
class PointerRegion: public System::Region {
@ -428,7 +436,9 @@ class JarElement: public Element {
};
JarElement(System* s, Allocator* allocator, const char* name):
s(s), allocator(allocator), name(name), region(0), index(0)
s(s), allocator(allocator), name(name),
urlPrefix_(name ? append(allocator, "jar:file:", name, "!/") : 0),
region(0), index(0)
{ }
JarElement(System* s, Allocator* allocator, const uint8_t* jarData,
@ -436,6 +446,7 @@ class JarElement: public Element {
s(s),
allocator(allocator),
name(0),
urlPrefix_(name ? append(allocator, "jar:file:", name, "!/") : 0),
region(new (allocator->allocate(sizeof(PointerRegion)))
PointerRegion(s, allocator, jarData, jarLength)),
index(JarIndex::open(s, allocator, region))
@ -485,12 +496,17 @@ class JarElement: public Element {
: System::TypeDoesNotExist);
}
virtual const char* urlPrefix() {
return urlPrefix_;
}
virtual void dispose() {
dispose(sizeof(*this));
}
virtual void dispose(unsigned size) {
allocator->free(name, strlen(name) + 1);
allocator->free(urlPrefix_, strlen(urlPrefix_) + 1);
if (index) {
index->dispose();
}
@ -503,6 +519,7 @@ class JarElement: public Element {
System* s;
Allocator* allocator;
const char* name;
const char* urlPrefix_;
System::Region* region;
JarIndex* index;
};
@ -535,6 +552,10 @@ class BuiltinElement: public JarElement {
}
}
virtual const char* urlPrefix() {
return "resource:";
}
virtual void dispose() {
library->disposeAll();
if (libraryName) {
@ -769,6 +790,18 @@ class MyFinder: public Finder {
return System::TypeDoesNotExist;
}
virtual const char* urlPrefix(const char* name) {
for (Element* e = path_; e; e = e->next) {
unsigned length;
System::FileType type = e->stat(name, &length, true);
if (type != System::TypeDoesNotExist) {
return e->urlPrefix();
}
}
return 0;
}
virtual const char* path() {
return pathString;
}