ARCHIVE/hpcore
1
0
Fork 0
mirror of https://github.com/EvernodeXRPL/hpcore.git synced 2026-04-29 15:37:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

Integrated hpfs in-proc sessions. (#134)

Browse Source
This commit is contained in:
Ravin Perera
2020-10-23 10:04:45 +05:30
committed by GitHub
parent 4f6ff4fbef
commit 7a4e91b0dd
12 changed files with 278 additions and 201 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
src/sc.cpp
View File

@@ -10,6 +10,47 @@
namespace sc
{
const int MAX_NPL_BUF_SIZE = 128 * 1024;
bool init_success = false;
// We maintain two hpfs global processes for merging and rw sessions.
pid_t hpfs_merge_pid = 0;
pid_t hpfs_rw_pid = 0;
/**
* Performs system startup activitites related to smart contract execution.
*/
int init()
{
if (hpfs::start_merge_process(hpfs_merge_pid) == -1)
return -1;
if (hpfs::start_ro_rw_process(hpfs_rw_pid, conf::ctx.state_rw_dir, false, true, false) == -1)
{
// Stop the merge process in case of failure.
util::kill_process(hpfs_merge_pid, true);
return -1;
}
init_success = true;
return 0;
}
/**
* Performs global cleanup related to smart contract execution.
*/
void deinit()
{
if (init_success)
{
LOG_DEBUG << "Stopping hpfs rw process... pid:" << hpfs_rw_pid;
if (hpfs_rw_pid > 0 && util::kill_process(hpfs_rw_pid, true) == 0)
LOG_INFO << "Stopped hpfs rw process.";
LOG_DEBUG << "Stopping hpfs merge process... pid:" << hpfs_merge_pid;
if (hpfs_merge_pid > 0 && util::kill_process(hpfs_merge_pid, true) == 0)
LOG_INFO << "Stopped hpfs merge process.";
}
}
/**
* Executes the contract process and passes the specified context arguments.
@@ -18,7 +59,7 @@ namespace sc
int execute_contract(execution_context &ctx)
{
// Start the hpfs rw session before starting the contract process.
if (start_hpfs_rw_session(ctx) == -1)
if (start_hpfs_session(ctx) == -1)
return -1;
// Setup io pipes and feed all inputs to them.
@@ -122,7 +163,7 @@ namespace sc
ret = -1;
success:
if (stop_hpfs_rw_session(ctx) == -1)
if (stop_hpfs_session(ctx) == -1)
ret = -1;
cleanup_fdmap(ctx.userfds);
@@ -154,30 +195,41 @@ namespace sc
/**
* Starts the hpfs read/write state filesystem.
*/
int start_hpfs_rw_session(execution_context &ctx)
int start_hpfs_session(execution_context &ctx)
{
if (hpfs::start_fs_session(ctx.hpfs_pid, ctx.args.state_dir, ctx.args.readonly ? "ro" : "rw", true) == -1)
// In readonly mode, we must start the hpfs process first.
// In RW mode, there is a global hpfs RW process so we only need to create an fs session.
if (ctx.args.readonly && hpfs::start_ro_rw_process(ctx.hpfs_pid, ctx.args.state_dir, true, false, false) == -1)
return -1;
else
ctx.hpfs_pid = hpfs_rw_pid;
if (hpfs::start_fs_session(ctx.args.state_dir) == -1)
return -1;
LOG_DEBUG << "hpfs session started. pid:" << ctx.hpfs_pid << (ctx.args.readonly ? " (rdonly)" : "");
return 0;
}
/**
* Stops the hpfs state filesystem.
*/
int stop_hpfs_rw_session(execution_context &ctx)
int stop_hpfs_session(execution_context &ctx)
{
int result = 0;
// Read the root hash if not in readonly mode.
if (!ctx.args.readonly && hpfs::get_hash(ctx.args.post_execution_state_hash, ctx.args.state_dir, "/") < 1)
result = -1;
LOG_DEBUG << "Stopping hpfs session... pid:" << ctx.hpfs_pid << (ctx.args.readonly ? " (rdonly)" : "");
LOG_DEBUG << "Stopping hpfs contract session..." << (ctx.args.readonly ? " (rdonly)" : "");
if (util::kill_process(ctx.hpfs_pid, true) == -1)
// In readonly mode, we must also stop the hpfs process itself.
// In RW mode, we only need to stop the fs session and let the RW process keep running.
if (ctx.args.readonly && util::kill_process(ctx.hpfs_pid, true) == -1)
result = -1;
if (hpfs::stop_fs_session(ctx.args.state_dir) == -1)
return -1;
ctx.hpfs_pid = 0;
return result;
}