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-rw-r--r--src/nvim/api/vim.c606
1 files changed, 597 insertions, 9 deletions
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index f4ccf07bec..07ec6e8c27 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -33,6 +33,10 @@
#include "nvim/syntax.h"
#include "nvim/getchar.h"
#include "nvim/os/input.h"
+#include "nvim/os/process.h"
+#include "nvim/viml/parser/expressions.h"
+#include "nvim/viml/parser/parser.h"
+#include "nvim/ui.h"
#define LINE_BUFFER_SIZE 4096
@@ -41,14 +45,15 @@
#endif
/// Executes an ex-command.
-/// On VimL error: Returns the VimL error; v:errmsg is not updated.
+///
+/// On parse error: forwards the Vim error; does not update v:errmsg.
+/// On runtime error: forwards the Vim error; does not update v:errmsg.
///
/// @param command Ex-command string
-/// @param[out] err Error details (including actual VimL error), if any
+/// @param[out] err Error details (Vim error), if any
void nvim_command(String command, Error *err)
FUNC_API_SINCE(1)
{
- // Run the command
try_start();
do_cmdline_cmd(command.data);
update_screen(VALID);
@@ -205,18 +210,51 @@ String nvim_replace_termcodes(String str, Boolean from_part, Boolean do_lt,
return cstr_as_string(ptr);
}
-String nvim_command_output(String str, Error *err)
+/// Executes an ex-command and returns its (non-error) output.
+/// Shell |:!| output is not captured.
+///
+/// On parse error: forwards the Vim error; does not update v:errmsg.
+/// On runtime error: forwards the Vim error; does not update v:errmsg.
+///
+/// @param command Ex-command string
+/// @param[out] err Error details (Vim error), if any
+String nvim_command_output(String command, Error *err)
FUNC_API_SINCE(1)
{
- do_cmdline_cmd("redir => v:command_output");
- nvim_command(str, err);
- do_cmdline_cmd("redir END");
+ const int save_msg_silent = msg_silent;
+ garray_T *const save_capture_ga = capture_ga;
+ garray_T capture_local;
+ ga_init(&capture_local, 1, 80);
+
+ try_start();
+ msg_silent++;
+ capture_ga = &capture_local;
+ do_cmdline_cmd(command.data);
+ capture_ga = save_capture_ga;
+ msg_silent = save_msg_silent;
+ try_end(err);
if (ERROR_SET(err)) {
- return (String)STRING_INIT;
+ goto theend;
}
- return cstr_to_string((char *)get_vim_var_str(VV_COMMAND_OUTPUT));
+ if (capture_local.ga_len > 1) {
+ String s = (String){
+ .data = capture_local.ga_data,
+ .size = (size_t)capture_local.ga_len,
+ };
+ // redir usually (except :echon) prepends a newline.
+ if (s.data[0] == '\n') {
+ memmove(s.data, s.data + 1, s.size);
+ s.data[s.size - 1] = '\0';
+ s.size = s.size - 1;
+ }
+ return s; // Caller will free the memory.
+ }
+
+theend:
+ ga_clear(&capture_local);
+ return (String)STRING_INIT;
}
/// Evaluates a VimL expression (:help expression).
@@ -787,6 +825,10 @@ ArrayOf(Dictionary) nvim_get_keymap(String mode)
return keymap_array(mode, NULL);
}
+/// Returns a 2-tuple (Array), where item 0 is the current channel id and item
+/// 1 is the |api-metadata| map (Dictionary).
+///
+/// @returns 2-tuple [{channel-id}, {api-metadata}]
Array nvim_get_api_info(uint64_t channel_id)
FUNC_API_SINCE(1) FUNC_API_ASYNC FUNC_API_REMOTE_ONLY
{
@@ -889,6 +931,460 @@ theend:
return rv;
}
+typedef struct {
+ ExprASTNode **node_p;
+ Object *ret_node_p;
+} ExprASTConvStackItem;
+
+/// @cond DOXYGEN_NOT_A_FUNCTION
+typedef kvec_withinit_t(ExprASTConvStackItem, 16) ExprASTConvStack;
+/// @endcond
+
+/// Parse a VimL expression
+///
+/// @param[in] expr Expression to parse. Is always treated as a single line.
+/// @param[in] flags Flags:
+///
+/// - "m" if multiple expressions in a row are allowed (only
+/// the first one will be parsed),
+/// - "E" if EOC tokens are not allowed (determines whether
+/// they will stop parsing process or be recognized as an
+/// operator/space, though also yielding an error).
+/// - "l" when needing to start parsing with lvalues for
+/// ":let" or ":for".
+///
+/// Common flag sets:
+/// - "m" to parse like for ":echo".
+/// - "E" to parse like for "<C-r>=".
+/// - empty string for ":call".
+/// - "lm" to parse for ":let".
+/// @param[in] highlight If true, return value will also include "highlight"
+/// key containing array of 4-tuples (arrays) (Integer,
+/// Integer, Integer, String), where first three numbers
+/// define the highlighted region and represent line,
+/// starting column and ending column (latter exclusive:
+/// one should highlight region [start_col, end_col)).
+///
+/// @return AST: top-level dictionary with these keys:
+///
+/// "error": Dictionary with error, present only if parser saw some
+/// error. Contains the following keys:
+///
+/// "message": String, error message in printf format, translated.
+/// Must contain exactly one "%.*s".
+/// "arg": String, error message argument.
+///
+/// "len": Amount of bytes successfully parsed. With flags equal to ""
+/// that should be equal to the length of expr string.
+///
+/// @note: “Sucessfully parsed” here means “participated in AST
+/// creation”, not “till the first error”.
+///
+/// "ast": AST, either nil or a dictionary with these keys:
+///
+/// "type": node type, one of the value names from ExprASTNodeType
+/// stringified without "kExprNode" prefix.
+/// "start": a pair [line, column] describing where node is “started”
+/// where "line" is always 0 (will not be 0 if you will be
+/// using nvim_parse_viml() on e.g. ":let", but that is not
+/// present yet). Both elements are Integers.
+/// "len": “length” of the node. This and "start" are there for
+/// debugging purposes primary (debugging parser and providing
+/// debug information).
+/// "children": a list of nodes described in top/"ast". There always
+/// is zero, one or two children, key will not be present
+/// if node has no children. Maximum number of children
+/// may be found in node_maxchildren array.
+///
+/// Local values (present only for certain nodes):
+///
+/// "scope": a single Integer, specifies scope for "Option" and
+/// "PlainIdentifier" nodes. For "Option" it is one of
+/// ExprOptScope values, for "PlainIdentifier" it is one of
+/// ExprVarScope values.
+/// "ident": identifier (without scope, if any), present for "Option",
+/// "PlainIdentifier", "PlainKey" and "Environment" nodes.
+/// "name": Integer, register name (one character) or -1. Only present
+/// for "Register" nodes.
+/// "cmp_type": String, comparison type, one of the value names from
+/// ExprComparisonType, stringified without "kExprCmp"
+/// prefix. Only present for "Comparison" nodes.
+/// "ccs_strategy": String, case comparison strategy, one of the
+/// value names from ExprCaseCompareStrategy,
+/// stringified without "kCCStrategy" prefix. Only
+/// present for "Comparison" nodes.
+/// "augmentation": String, augmentation type for "Assignment" nodes.
+/// Is either an empty string, "Add", "Subtract" or
+/// "Concat" for "=", "+=", "-=" or ".=" respectively.
+/// "invert": Boolean, true if result of comparison needs to be
+/// inverted. Only present for "Comparison" nodes.
+/// "ivalue": Integer, integer value for "Integer" nodes.
+/// "fvalue": Float, floating-point value for "Float" nodes.
+/// "svalue": String, value for "SingleQuotedString" and
+/// "DoubleQuotedString" nodes.
+Dictionary nvim_parse_expression(String expr, String flags, Boolean highlight,
+ Error *err)
+ FUNC_API_SINCE(4) FUNC_API_ASYNC
+{
+ int pflags = 0;
+ for (size_t i = 0 ; i < flags.size ; i++) {
+ switch (flags.data[i]) {
+ case 'm': { pflags |= kExprFlagsMulti; break; }
+ case 'E': { pflags |= kExprFlagsDisallowEOC; break; }
+ case 'l': { pflags |= kExprFlagsParseLet; break; }
+ case NUL: {
+ api_set_error(err, kErrorTypeValidation, "Invalid flag: '\\0' (%u)",
+ (unsigned)flags.data[i]);
+ return (Dictionary)ARRAY_DICT_INIT;
+ }
+ default: {
+ api_set_error(err, kErrorTypeValidation, "Invalid flag: '%c' (%u)",
+ flags.data[i], (unsigned)flags.data[i]);
+ return (Dictionary)ARRAY_DICT_INIT;
+ }
+ }
+ }
+ ParserLine plines[] = {
+ {
+ .data = expr.data,
+ .size = expr.size,
+ .allocated = false,
+ },
+ { NULL, 0, false },
+ };
+ ParserLine *plines_p = plines;
+ ParserHighlight colors;
+ kvi_init(colors);
+ ParserHighlight *const colors_p = (highlight ? &colors : NULL);
+ ParserState pstate;
+ viml_parser_init(
+ &pstate, parser_simple_get_line, &plines_p, colors_p);
+ ExprAST east = viml_pexpr_parse(&pstate, pflags);
+
+ const size_t ret_size = (
+ 2 // "ast", "len"
+ + (size_t)(east.err.msg != NULL) // "error"
+ + (size_t)highlight // "highlight"
+ + 0);
+ Dictionary ret = {
+ .items = xmalloc(ret_size * sizeof(ret.items[0])),
+ .size = 0,
+ .capacity = ret_size,
+ };
+ ret.items[ret.size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("ast"),
+ .value = NIL,
+ };
+ ret.items[ret.size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("len"),
+ .value = INTEGER_OBJ((Integer)(pstate.pos.line == 1
+ ? plines[0].size
+ : pstate.pos.col)),
+ };
+ if (east.err.msg != NULL) {
+ Dictionary err_dict = {
+ .items = xmalloc(2 * sizeof(err_dict.items[0])),
+ .size = 2,
+ .capacity = 2,
+ };
+ err_dict.items[0] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("message"),
+ .value = STRING_OBJ(cstr_to_string(east.err.msg)),
+ };
+ if (east.err.arg == NULL) {
+ err_dict.items[1] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("arg"),
+ .value = STRING_OBJ(STRING_INIT),
+ };
+ } else {
+ err_dict.items[1] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("arg"),
+ .value = STRING_OBJ(((String) {
+ .data = xmemdupz(east.err.arg, (size_t)east.err.arg_len),
+ .size = (size_t)east.err.arg_len,
+ })),
+ };
+ }
+ ret.items[ret.size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("error"),
+ .value = DICTIONARY_OBJ(err_dict),
+ };
+ }
+ if (highlight) {
+ Array hl = (Array) {
+ .items = xmalloc(kv_size(colors) * sizeof(hl.items[0])),
+ .capacity = kv_size(colors),
+ .size = kv_size(colors),
+ };
+ for (size_t i = 0 ; i < kv_size(colors) ; i++) {
+ const ParserHighlightChunk chunk = kv_A(colors, i);
+ Array chunk_arr = (Array) {
+ .items = xmalloc(4 * sizeof(chunk_arr.items[0])),
+ .capacity = 4,
+ .size = 4,
+ };
+ chunk_arr.items[0] = INTEGER_OBJ((Integer)chunk.start.line);
+ chunk_arr.items[1] = INTEGER_OBJ((Integer)chunk.start.col);
+ chunk_arr.items[2] = INTEGER_OBJ((Integer)chunk.end_col);
+ chunk_arr.items[3] = STRING_OBJ(cstr_to_string(chunk.group));
+ hl.items[i] = ARRAY_OBJ(chunk_arr);
+ }
+ ret.items[ret.size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("highlight"),
+ .value = ARRAY_OBJ(hl),
+ };
+ }
+ kvi_destroy(colors);
+
+ // Walk over the AST, freeing nodes in process.
+ ExprASTConvStack ast_conv_stack;
+ kvi_init(ast_conv_stack);
+ kvi_push(ast_conv_stack, ((ExprASTConvStackItem) {
+ .node_p = &east.root,
+ .ret_node_p = &ret.items[0].value,
+ }));
+ while (kv_size(ast_conv_stack)) {
+ ExprASTConvStackItem cur_item = kv_last(ast_conv_stack);
+ ExprASTNode *const node = *cur_item.node_p;
+ if (node == NULL) {
+ assert(kv_size(ast_conv_stack) == 1);
+ kv_drop(ast_conv_stack, 1);
+ } else {
+ if (cur_item.ret_node_p->type == kObjectTypeNil) {
+ const size_t ret_node_items_size = (size_t)(
+ 3 // "type", "start" and "len"
+ + (node->children != NULL) // "children"
+ + (node->type == kExprNodeOption
+ || node->type == kExprNodePlainIdentifier) // "scope"
+ + (node->type == kExprNodeOption
+ || node->type == kExprNodePlainIdentifier
+ || node->type == kExprNodePlainKey
+ || node->type == kExprNodeEnvironment) // "ident"
+ + (node->type == kExprNodeRegister) // "name"
+ + (3 // "cmp_type", "ccs_strategy", "invert"
+ * (node->type == kExprNodeComparison))
+ + (node->type == kExprNodeInteger) // "ivalue"
+ + (node->type == kExprNodeFloat) // "fvalue"
+ + (node->type == kExprNodeDoubleQuotedString
+ || node->type == kExprNodeSingleQuotedString) // "svalue"
+ + (node->type == kExprNodeAssignment) // "augmentation"
+ + 0);
+ Dictionary ret_node = {
+ .items = xmalloc(ret_node_items_size * sizeof(ret_node.items[0])),
+ .capacity = ret_node_items_size,
+ .size = 0,
+ };
+ *cur_item.ret_node_p = DICTIONARY_OBJ(ret_node);
+ }
+ Dictionary *ret_node = &cur_item.ret_node_p->data.dictionary;
+ if (node->children != NULL) {
+ const size_t num_children = 1 + (node->children->next != NULL);
+ Array children_array = {
+ .items = xmalloc(num_children * sizeof(children_array.items[0])),
+ .capacity = num_children,
+ .size = num_children,
+ };
+ for (size_t i = 0; i < num_children; i++) {
+ children_array.items[i] = NIL;
+ }
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("children"),
+ .value = ARRAY_OBJ(children_array),
+ };
+ kvi_push(ast_conv_stack, ((ExprASTConvStackItem) {
+ .node_p = &node->children,
+ .ret_node_p = &children_array.items[0],
+ }));
+ } else if (node->next != NULL) {
+ kvi_push(ast_conv_stack, ((ExprASTConvStackItem) {
+ .node_p = &node->next,
+ .ret_node_p = cur_item.ret_node_p + 1,
+ }));
+ } else if (node != NULL) {
+ kv_drop(ast_conv_stack, 1);
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("type"),
+ .value = STRING_OBJ(cstr_to_string(east_node_type_tab[node->type])),
+ };
+ Array start_array = {
+ .items = xmalloc(2 * sizeof(start_array.items[0])),
+ .capacity = 2,
+ .size = 2,
+ };
+ start_array.items[0] = INTEGER_OBJ((Integer)node->start.line);
+ start_array.items[1] = INTEGER_OBJ((Integer)node->start.col);
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("start"),
+ .value = ARRAY_OBJ(start_array),
+ };
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("len"),
+ .value = INTEGER_OBJ((Integer)node->len),
+ };
+ switch (node->type) {
+ case kExprNodeDoubleQuotedString:
+ case kExprNodeSingleQuotedString: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("svalue"),
+ .value = STRING_OBJ(((String) {
+ .data = node->data.str.value,
+ .size = node->data.str.size,
+ })),
+ };
+ break;
+ }
+ case kExprNodeOption: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("scope"),
+ .value = INTEGER_OBJ(node->data.opt.scope),
+ };
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("ident"),
+ .value = STRING_OBJ(((String) {
+ .data = xmemdupz(node->data.opt.ident,
+ node->data.opt.ident_len),
+ .size = node->data.opt.ident_len,
+ })),
+ };
+ break;
+ }
+ case kExprNodePlainIdentifier: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("scope"),
+ .value = INTEGER_OBJ(node->data.var.scope),
+ };
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("ident"),
+ .value = STRING_OBJ(((String) {
+ .data = xmemdupz(node->data.var.ident,
+ node->data.var.ident_len),
+ .size = node->data.var.ident_len,
+ })),
+ };
+ break;
+ }
+ case kExprNodePlainKey: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("ident"),
+ .value = STRING_OBJ(((String) {
+ .data = xmemdupz(node->data.var.ident,
+ node->data.var.ident_len),
+ .size = node->data.var.ident_len,
+ })),
+ };
+ break;
+ }
+ case kExprNodeEnvironment: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("ident"),
+ .value = STRING_OBJ(((String) {
+ .data = xmemdupz(node->data.env.ident,
+ node->data.env.ident_len),
+ .size = node->data.env.ident_len,
+ })),
+ };
+ break;
+ }
+ case kExprNodeRegister: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("name"),
+ .value = INTEGER_OBJ(node->data.reg.name),
+ };
+ break;
+ }
+ case kExprNodeComparison: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("cmp_type"),
+ .value = STRING_OBJ(cstr_to_string(
+ eltkn_cmp_type_tab[node->data.cmp.type])),
+ };
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("ccs_strategy"),
+ .value = STRING_OBJ(cstr_to_string(
+ ccs_tab[node->data.cmp.ccs])),
+ };
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("invert"),
+ .value = BOOLEAN_OBJ(node->data.cmp.inv),
+ };
+ break;
+ }
+ case kExprNodeFloat: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("fvalue"),
+ .value = FLOAT_OBJ(node->data.flt.value),
+ };
+ break;
+ }
+ case kExprNodeInteger: {
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("ivalue"),
+ .value = INTEGER_OBJ((Integer)(
+ node->data.num.value > API_INTEGER_MAX
+ ? API_INTEGER_MAX
+ : (Integer)node->data.num.value)),
+ };
+ break;
+ }
+ case kExprNodeAssignment: {
+ const ExprAssignmentType asgn_type = node->data.ass.type;
+ ret_node->items[ret_node->size++] = (KeyValuePair) {
+ .key = STATIC_CSTR_TO_STRING("augmentation"),
+ .value = STRING_OBJ(
+ asgn_type == kExprAsgnPlain
+ ? (String)STRING_INIT
+ : cstr_to_string(expr_asgn_type_tab[asgn_type])),
+ };
+ break;
+ }
+ case kExprNodeMissing:
+ case kExprNodeOpMissing:
+ case kExprNodeTernary:
+ case kExprNodeTernaryValue:
+ case kExprNodeSubscript:
+ case kExprNodeListLiteral:
+ case kExprNodeUnaryPlus:
+ case kExprNodeBinaryPlus:
+ case kExprNodeNested:
+ case kExprNodeCall:
+ case kExprNodeComplexIdentifier:
+ case kExprNodeUnknownFigure:
+ case kExprNodeLambda:
+ case kExprNodeDictLiteral:
+ case kExprNodeCurlyBracesIdentifier:
+ case kExprNodeComma:
+ case kExprNodeColon:
+ case kExprNodeArrow:
+ case kExprNodeConcat:
+ case kExprNodeConcatOrSubscript:
+ case kExprNodeOr:
+ case kExprNodeAnd:
+ case kExprNodeUnaryMinus:
+ case kExprNodeBinaryMinus:
+ case kExprNodeNot:
+ case kExprNodeMultiplication:
+ case kExprNodeDivision:
+ case kExprNodeMod: {
+ break;
+ }
+ }
+ assert(cur_item.ret_node_p->data.dictionary.size
+ == cur_item.ret_node_p->data.dictionary.capacity);
+ xfree(*cur_item.node_p);
+ *cur_item.node_p = NULL;
+ }
+ }
+ }
+ kvi_destroy(ast_conv_stack);
+
+ assert(ret.size == ret.capacity);
+ // Should be a no-op actually, leaving it in case non-nodes will need to be
+ // freed later.
+ viml_pexpr_free_ast(east);
+ viml_parser_destroy(&pstate);
+ return ret;
+}
+
/// Writes a message to vim output or error buffer. The string is split
/// and flushed after each newline. Incomplete lines are kept for writing
@@ -976,3 +1472,95 @@ Float nvim__id_float(Float flt)
{
return flt;
}
+
+/// Gets a list of dictionaries representing attached UIs.
+///
+/// @return Array of UI dictionaries
+Array nvim_list_uis(void)
+ FUNC_API_SINCE(4)
+{
+ return ui_array();
+}
+
+/// Gets the immediate children of process `pid`.
+///
+/// @return Array of child process ids, empty if process not found.
+Array nvim_get_proc_children(Integer pid, Error *err)
+ FUNC_API_SINCE(4)
+{
+ Array rvobj = ARRAY_DICT_INIT;
+ int *proc_list = NULL;
+
+ if (pid <= 0 || pid > INT_MAX) {
+ api_set_error(err, kErrorTypeException, "Invalid pid: %" PRId64, pid);
+ goto end;
+ }
+
+ size_t proc_count;
+ int rv = os_proc_children((int)pid, &proc_list, &proc_count);
+ if (rv != 0) {
+ // syscall failed (possibly because of kernel options), try shelling out.
+ DLOG("fallback to vim._os_proc_children()");
+ Array a = ARRAY_DICT_INIT;
+ ADD(a, INTEGER_OBJ(pid));
+ String s = cstr_to_string("return vim._os_proc_children(select(1, ...))");
+ Object o = nvim_execute_lua(s, a, err);
+ api_free_string(s);
+ api_free_array(a);
+ if (o.type == kObjectTypeArray) {
+ rvobj = o.data.array;
+ } else if (!ERROR_SET(err)) {
+ api_set_error(err, kErrorTypeException,
+ "Failed to get process children. pid=%" PRId64 " error=%d",
+ pid, rv);
+ }
+ goto end;
+ }
+
+ for (size_t i = 0; i < proc_count; i++) {
+ ADD(rvobj, INTEGER_OBJ(proc_list[i]));
+ }
+
+end:
+ xfree(proc_list);
+ return rvobj;
+}
+
+/// Gets info describing process `pid`.
+///
+/// @return Map of process properties, or NIL if process not found.
+Object nvim_get_proc(Integer pid, Error *err)
+ FUNC_API_SINCE(4)
+{
+ Object rvobj = OBJECT_INIT;
+ rvobj.data.dictionary = (Dictionary)ARRAY_DICT_INIT;
+ rvobj.type = kObjectTypeDictionary;
+
+ if (pid <= 0 || pid > INT_MAX) {
+ api_set_error(err, kErrorTypeException, "Invalid pid: %" PRId64, pid);
+ return NIL;
+ }
+#ifdef WIN32
+ rvobj.data.dictionary = os_proc_info((int)pid);
+ if (rvobj.data.dictionary.size == 0) { // Process not found.
+ return NIL;
+ }
+#else
+ // Cross-platform process info APIs are miserable, so use `ps` instead.
+ Array a = ARRAY_DICT_INIT;
+ ADD(a, INTEGER_OBJ(pid));
+ String s = cstr_to_string("return vim._os_proc_info(select(1, ...))");
+ Object o = nvim_execute_lua(s, a, err);
+ api_free_string(s);
+ api_free_array(a);
+ if (o.type == kObjectTypeArray && o.data.array.size == 0) {
+ return NIL; // Process not found.
+ } else if (o.type == kObjectTypeDictionary) {
+ rvobj.data.dictionary = o.data.dictionary;
+ } else if (!ERROR_SET(err)) {
+ api_set_error(err, kErrorTypeException,
+ "Failed to get process info. pid=%" PRId64, pid);
+ }
+#endif
+ return rvobj;
+}
generated by cgit (git 2.34.1) at 2025-04-29 14:13:13 +0000