drew/acadia
1
0
Fork 0
Code Issues 6 Pull requests Projects Releases Packages Wiki Activity Actions

[VictoriaFalls] Implement Read File.

Browse source
This commit is contained in:
Drew Galbraith 2023-11-02 20:57:28 -07:00
parent abf09d8fce
commit d7050ff19f
7 changed files with 87 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

39
sys/victoriafalls/victoriafalls_server.cpp
View file

@ -4,22 +4,47 @@
#include <mammoth/debug.h>
#include <zcall.h>
glcr::ErrorOr<glcr::UniquePtr<VFSServer>> VFSServer::Create() {
glcr::ErrorOr<glcr::UniquePtr<VFSServer>> VFSServer::Create(
Ext2Driver& driver) {
z_cap_t endpoint_cap;
RET_ERR(ZEndpointCreate(&endpoint_cap));
return glcr::UniquePtr<VFSServer>(new VFSServer(endpoint_cap));
return glcr::UniquePtr<VFSServer>(new VFSServer(endpoint_cap, driver));
}
glcr::ErrorCode VFSServer::HandleOpenFile(const OpenFileRequest& request,
OpenFileResponse&) {
OpenFileResponse& response) {
auto path_tokens = glcr::StrSplit(request.path(), '/');
for (uint64_t i = 0; i < path_tokens.size(); i++) {
dbgln("Token %u: '%s'", i, glcr::String(path_tokens.at(i)).cstr());
}
// Require all paths to be absolute rather than relative.
// If the path starts with '/' then the first token will be empty.
if (path_tokens.at(0) != "") {
return glcr::INVALID_ARGUMENT;
}
return glcr::UNIMPLEMENTED;
ASSIGN_OR_RETURN(auto files, driver_.ReadDirectory(2));
for (uint64_t i = 1; i < path_tokens.size() - 1; i++) {
for (uint64_t j = 0; j < files.size(); j++) {
if (path_tokens.at(i) ==
glcr::StringView(files.at(j).name, files.at(j).name_len)) {
ASSIGN_OR_RETURN(files, driver_.ReadDirectory(files.at(j).inode));
}
}
dbgln("Directory '%s' not found.", glcr::String(path_tokens.at(i)).cstr());
return glcr::NOT_FOUND;
}
MappedMemoryRegion region;
for (uint64_t j = 0; j < files.size(); j++) {
if (path_tokens.at(path_tokens.size() - 1) ==
glcr::StringView(files.at(j).name, files.at(j).name_len)) {
ASSIGN_OR_RETURN(region, driver_.ReadFile(files.at(j).inode));
}
}
if (!region) {
dbgln("File '%s' not found.",
glcr::String(path_tokens.at(path_tokens.size() - 1)).cstr());
}
response.set_path(request.path());
response.set_memory(region.cap());
return glcr::OK;
}